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abortion within the first month of pregnancy暗产
additional first year depreciation首年追加折旧费
airfield first aid机场救护
amplitude of first harmonic基波振幅
asymptote of the first part of the curve首枝渐近线
at the first sampling在第一次取样时
attenuation of the first kind第一种衰减
breadth-first宽度优先
breadth-first generation宽度优先生成
breadth-first procedure横式生成过程
breadth-and-depth-first search宽度与深度优先搜索
Castigliano's first theorem卡斯特利亚诺第一定理
Castigliano's first theorem卡氏第一定理
collision of the first kind第一类碰撞
collision of the first kind第一种碰撞
computer-picked arrival of first break计算机拾取初至时间
congruence of first degree一次同余
construction time to first generation第一批机组发电所需工期
court of first instance初审法庭
cusp of the first species第一种歧点
cutting length of the first arrival初至切除长度
cutting time of the first arrival初至互切除时间
depth-first深度优先
depth-first minimax procedure深度优先最小最大过程
depth-first procedure深度优先过程
differential equation of first order一阶微分方程
discontinuity of the first kind第一类间断性
dog watch first前二班时
dollar-value last-in first-out method按美元价值计算的后进先出法
earliest first appearance of ice最早初冰日
emergency first-aid kit紧急救护箱
emergency first-aid kit紧急救护器材
emergency first-aid kit紧急救护用具
emergency first aid treatment guide紧急急救处理指南
end stake number of the first receiver line首检波点线终了桩号
Engesser's first theorem恩盖瑟第一定理
equation of the first degree一次方程 (式)
error of the first kind第一种错误
export-production-first policy出口产业优先政策
external nodal point of first kind boundary一类边界外节点
first access point第一入口处
first address直接地址
first advance超前工作面
first aid事故抢救
first aid紧急救护
first-aid apparatus急救设备
first-aid appliance急救用品
first-aid attendant基本救援人员
first aid dressing急救包扎
first-aid equipment基本救援设备
first-aid equipment急救设备
first-aid extinguishing自救灭火
first-aid hose应急水龙带
first-aid hose小口径胶管水带
first-aid injury急救创伤
first-aid kit急救
first-aid measures抢救措施
first-aid medicine急救药品
first-aid organization急救组织
first-aid outfit急救医疗器具
first-aid outfit小型水罐消防车
first-aid repair初步修理
first-aid repair初步修缮
first-aid standpipe应急消防立管
first-aid station救护站
first-aid supply急救材料
first-aid team救护队
first-aid to the injured伤员急救
first-aid treatment急救
first aider急救员
first alarm首次火警
first alarm一级火警
first alarm assignment第一出动
first application初泼
first application第一次浇 (沥青)
first arrival correlation初至对比
first arrival first attack初期灭火
first arrival muting初至切除
first arrival time初至时间
first attack初次发病
first attendance头车
first azimuth method第一方位角法
first base次基层
first base底基层
first batch首批
first batch of newly designed products初次产品
first beater第一逐稿轮
first bid首次报价
first bid头标
first bottom泛滥平原
first bottom第一河底
first bottom漫水阶地
first boundary-value problem第一类边值问题
first break波的初至
first break refraction method初至折射法
first category of commodities一类商品
first category of goods一类物资
first category vessel一类容器
first charge第一次投料
first choice首选
first-class上等的
first-class头等
first-class brick一级砖
first-class cabin头等舱
first-class cabin一等舱
first-class car头等车【铁】
first-class certificate一等证书
first-class charter一级租船人
first-class commercial paper一等商业票据
first-class current第一类流
first-class diver一级潜水员
first-class highway一级公路
first-class mail密封邮件
first-class maintenance一级维护
first-class maintenance一级保养
first-class ore一级矿石
first-class paper头等票据
first-class passenger一等舱旅客
first-class quality头等货
first-class quality头等质量
first-class road一级道路
first-class wood pile一级木桩
first coat头道灰
first coat底涂 (层)
first coat结合层
first coat括糙
first coat抹灰底层
first coat首涂层
first coat刮糙
first coat头道抹灰
first coat第一度油漆
first coat第一道涂工 (油漆等)
first coat in plastering work抹灰工作头道打底
first coat in plastering work底涂磨面底层
first coat of plaster头道灰
first come first-served先到者先接受服务原则
first come first-served system先到先办制
first come first-service先来先服务
first copy-out time第一份复制品输出时间
first copy-out time首次拷贝时间
first course头道锉纹
first crack初裂
first crack stress初裂应力
first cracking strength初裂强度
first crush初始压碎
first crushing初碎
first curing第一次养护
first data multiplexer第一数据多路转接器
first derived curve导曲线
first detail group第一细目栏
first detector第一检波器
first detector混频器
first developing首次显影
first difference一阶差分
first difference一次差
first difference一阶有限差
first difference method一阶差分法
first difference of variables变量的一阶差分法
first difference series一阶差分数列
first difference transformation一阶差分变换
first dilution ratio一次贫化率
first discharge rate初排出速率
first dollar coverage全额赔偿
first drafting底图
first dressing第一次清理
first driver初级激励器
first driver unit初级主振部分
first electron lens第一电子透镜
first electron lens阴极透镜
first element of chain链的首元素
first-ended, first-out先完先出
first entry table初始输入表
first environment第一环境
first equation of Maxwell麦克斯韦第一方程
first excursion probability首次偏移概率
first felling-line初次疏伐线
first filling初期蓄水
first filling初次蓄水
first filling第一次投料
first filter粗滤器
first fixer粗木工 (匠)
first fixings预装配
first fixings嵌固件
first fixings木构件
first fixings细木工程准备工作
first fixings初级装配
first floor第二层楼
first floor底层
first floor第一层楼 (美国)
first floor首层 (美国)
first floor一层 (指楼房)
first floor底层
first floor plan第二层平面 (英国)
first floor plan二层平面 (英国)
first floor plan第一层平面图 (美国)
first floor plan一层平面图 (美国)
first floor plan首层平面 (美国)
first flush load初次暴雨冲洗负荷
first-flush-effect初期雨水冲洗影响
first Fresnel zone第一菲涅耳区
first fruits初步成果
first fruits初年度收益
first gear第一〔启动〕挡
first gear第一速度齿
first gear头挡齿轮
first-gear engagement一挡齿轮啮合
first generation原件第一代
first generation第一代
first generation container berth第一代集装箱泊位
first glazing新装玻璃
first-grade头等的
first-grade甲级
first grade fuel一级燃料
first-grade gravity base station for exploration geophysics物探重力一级基点
first grade of integrated wastewater discharge standard污水综合排放一级标准
first grade of national discharge standard国家一级排放标准
first grade structure一级构造
first grade timber一级木材
first grading初步土方修整
first grading初步土方平整
first grading初次平整
first grading初次整平
first grading路基的初次整形
first grid第一栅极
first growth原始森林
first hand实地考察
first hand第一手的
first hand直接调査
first-hand data原始资料
first-hand data第一手资料
first-hand information第一手材料
first-hand information直接信息
first-hand information原始资料
first harmonic oscillation基本振荡
first harmonic resonance基波共振
first harmonic resonance基波谐振
first horizontal derivative水平一阶导数
first ice date初冰出现期
first instant一开始
first intermediate host第一中间宿主
first intermediate roll第一层中间辊
first internode length第一节间长度
first investigation实地考察
first investigation直接调查
first item list首项表
first item list首项编目
first latex rubber头等橡胶
first leaky system第一越流系统
first light熹微光
first light航用晨光时
first line第一线 (的)
first line高档商品
first line一级品
first line最优良的
first line form advance首行进页
first line management初级管理人员
first line manager第一线管理人员
first line selector第一寻线器
first line servicing一线检修
first line switch第一预选器
first longitudinal vein第一纵脉
first loop feature第一环路适配器
first loop feature首环功能部件
first management step第一个管理步骤
first market初次市场
first mate大副【船
first meiotic division第一减数
first member左端〔边〕
first member左端 (边)
first member of equation方程的左边
first meridian起始子午线
first meridian本初子午线
first meridian零度经线
first mixer粗木工 (匠)
first mode resonance第一型共振
first module program第一组件程序
first module programme第一组件程序
first moment area method第一力矩面积法
first moment matrix一阶矩矩阵
first moment of area截面静矩
first mortgage第一抵押
first mortgage优先抵押权
first mortgage bond一类抵押债券
first motion初动
first motion直接运动
first-motion direction初动方向
first-motion drive直接传动 (的)
first-motion hoist直接传动提升机
first-motion studies初动研究
first-motion wave初至波
first motor man机匠长
First National City Bank花旗银行
first nodal point第一中心点
first normal move-out stack初次动校叠加
first officer大副【船
first open water第一解冻日
first open water初次解冻日
first open water开冻日
first open water不负担港口解冻之风险
first open water开封初期
first page indicator首页指示器
first-party audit第一方审核
first pass第一孔型
first pass初次通过
first pass第一遍 (扫描)
first pass一遍通过
first-pass own code第一遍扩充工作码
first-pass sorting第一遍分类
first passage time初通时间
first passage time首次经过时间
first polish底层磨光
first pollution第一污染
first pour第一期浇灌
first power一次方
first power开始发电
first power第一批机组发电
first power一次幕
first pressure初始压力
first principal strain第一主应变
first print试印样
first proof初样
first prospecting stage初勘阶段
first quarter上弦月
first quarter neap tide上弦小潮
first radiation constant第一辐射常数
first rate上等的
first rate头等的
first rate最上等的
first-rate quality头等质量
first-rater头等货
first reaction of cyanide decomposition氰化物分解一次反应
first record of a set集的第一记录
first refusal优先决定权 (right)
first refusal优先取舍权 (right)
first response district责任区
first/second-order leveling一二等水准测量
first separator第一次分裂装置
first septum第一隔
first set graft reaction初次移植物反应
first set rejection初次排斥反应
first several modes最低几个振型
first side先加工面
first signal第一信号
first sintering初次烧结
first sintering第一次烧结
first slab第一块铺石板
first speaker发话端
first speed初速
first speed一挡
first speed gear一挡齿轮
first squeeze初始挤压
first squeeze初始压碎
first-stage第一阶段
first-stage初期
first-stage第一期 (的)
first-stage anaerobic biofilter第一级厌氧生物滤池
first-stage anaerobic treatment第一级厌氧处理
first-stage annealing第一阶段退火
first-stage biochemical oxygen demand第级生化需氧量
first-stage biochemical oxygen demand第阶段生化需氧量
first-stage biological aerated filter第一级曝气膜生物反应器
first-stage biological contact oxidation第一级生物接触氧化
first-stage biological treatment process第一级生物处理工艺
first stage BOD第一-阶段 BOD (biochemical oxygen demand)
first stage BOD第一阶段生化需氧量 (biochemical oxygen demand)
first-stage concrete第一期混凝土
first-stage construction一期工程
first-stage development第一阶段发展
first-stage development第一阶段施工
first-stage graphitization第一阶段石墨化
first-stage installation电站的第一期装机
first-stage intermittent aeration membrane bio reactor第一级间歇曝气膜生物反应器
first-stage ionization一级电离
first-stage lining第一次衬砌
first-stage of creep一段蠕变
first-stage of primary design初设一期
first-stage oxidation treatment一级氧化处理
first-stage oxidizing process第一级氧化工艺
first-stage polymerization初级聚合
first-stage project一期工程
first-stage reduction一次缩小
first-stage rotating biological contactor第一级生物转盘
first-stage terrace一级阶地
first-stage/three-yard marshalling station一级三场编组站【铁】
first story第一层楼 (美国)
first story二楼 (英国)
first stress level初应力大小
first stud gear第一变速齿轮
first summation一次和分
first swing初动
first tap初加工丝锥
first tap粗加工丝锥
first tap头攻丝锥
first taxonomic classification第一个分类学上的分类
first terminal开头终结符
first-to-market首先进入市场
first treatment一级处理
first trust deed优先贷款信托文契
first twist初捻
first undercoat第一层底漆
first user产品的第一使用者
first user住房落成后的第一住户
first variation初级变分
first vertical derivative垂向一阶导数
first vibration mode第一振型
first virial coefficient第一维里系数
first visible crack可见初始裂缝
first watch头班
first-water钻石等的第一水
first-water最优秀
first-water第一流
first-water最高质量或光泽最纯 (钻石或珍珠等宝石)
first weight顶板初次来压
first weight初始加荷
first weight初始压碎
first working采准工作
first yield首次屈服
flexible first storey柔性底层
flexible first storey construction柔性底层结构
front line first aid火线抢救
guarantee on first demand保证债权人提出立刻履行
Harnack's first convergence theorem哈拿克第一收敛定理
highest-in first-out高入先出法
hollow first-stage plug空心第一级塞
horizontal angles of first break初至波的水平角
incoming first selector输入第一选择器
International Rescue and First Aid Association国际救援与急救协会
junior first engineer's room副大管轮室
last come first served后到先服务
last come first served后先出法
last-in first-out后到先服务
last-in first-out stack后进先出栈
lateral vein of the first order第一级侧脉
lever of first order第一类杠杆
lever of the first kind第一类杠杆
load at first crack始裂荷载
load at first crack初裂荷载
load at first crack开裂载重
main or first infection主要的或第一次侵染
major first face第一前刀面
major first flank第一后刀面
make first-phase preparations前期准备工作
mean date of first snow cover平均初雪
medium first-year ice当年中冰 (厚度 70 ~ 120 厘米)
Menders first law分异定律
minor first flank第一副后刀面
mixer-first detector混频器
monotonic model of the first kind第一类单调宇宙模型
national first grade gravity base station国家一等重力点
Newton's first law牛顿第一定律
open shortest path first开放的最短路径优先路由协议
oscillator-mixer-first detector振荡混频第一检波器
outlier of the first kind第一类离群值
pay first rule互保协会再赔
pay first rule先付规则
perpetual machine of the first kind第一类永动机
perpetual motion machine of the first kind第一类永动机
picking of first arrival times初至拾取
Poggendorff's first method恒流直流电位计
policy of prevention in the first place and integrating prevention with control预防为主、防治结合的政策
position of the first trace初始道位置
prevention first预防为主
principle of first-in first-served先到先做原则
pyramid of the first order初级棱锥体
ratio of first-grade products一级品率
re-first in first out重新进行先进先出
right of first refusal首买权
safety first安全第一
safety-first engineering安全技术
safety-first engineering技术保安
second time at right angles to the first第二次与第一次呈直角
shipment by first opportunity一有机会就装船
shipment by first opportunity遇机会即装运
shipment by first opportunity优先装运
standpipe-first-aid应急辅助消防水管
start stake number of the first receiver line首检波点线起始桩号
stern-first tow尾拖
stress of the first kind第一类应力
system stable of first order一阶稳定体系
systems of first order equation一阶方程组
tail first landing单点落地 (飞机)
take the first place名列第一
the first and the fifteenth day of the lunar month朔望
the first front头场霜
the first generational pesticide第一代农药
the first grade of minerogenetic prospect一级成矿远景区
the first grade of oil-gas prospect一级油气远景区
the first grade pf coal-forming prospect一级成煤远景区
the first party甲方
the first position of Gauss高斯第一位置
thick first-year ice当年厚冰 (厚度一百二十厘米以上)
thickness of the first layer第一层厚度
thin first-year ice当年薄冰 (厚度30~70厘米)
time of first induced earthquake第一次发震时间
to a first approximation相当〔一级〕近似地
to a first approximation以一级近似表示
to a first approximation大致上
town of first administrative importance一级行政中心
transmission first and reverse speed gear变速器头挡及倒车齿轮
work first头道操作
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