| Chinese | English |
| 人为因素 | anthropogenic factor |
| 信息素 | pheromone Any substance secreted by an animal which influences the behaviour of other individuals of the same species (任何物质，隐藏在动物的行为中，并对其它物种产生影响。) |
| 像素 | pixel A contraction of the words 'picture element'. The smallest unit of information in an image or raster map. Referred to as a resolution cell in an image or grid ("图像单元"的缩略词。最小单位的图像信息或光栅地图。指图像或网格的一个分辨率单元。) |
| 化学元素 | chemical element elements and their compounds ; A substance made up of atoms with the same atomic number; common examples are hydrogen, gold, and iron (只有一种原子组成的物质。常见的例子是氢、金和铁。) |
| 可吸附有机卤素值 | AOX value Organic halogens subject to absorption. This is a measure of the amount of chlorine (and other halogens) combined with organic compounds, adsorbable organic halogens value (可吸附性的有机卤素。 该数值用以表示与有机化合物结合之氯(及其他卤素)的含量。) |
| 叶绿素 C | chlorofucine |
| 叶绿素 | chlorophyll A green pigment, present in algae and higher plants, that absorbs light energy and thus plays a vital role in photosynthesis. Except in Cyanophyta (blue-green algae), chlorophyll is confined to chloroplasts. There are several types of chlorophyll, but all contain magnesium and iron. Some plants (e.g., brown algae, red algae, copper beech trees) contain additional pigments that masks the green of their chlorophyll (一种绿色色素、存在于海藻和高等植物中，吸收光能因此在光合作用中起着重要作用。除了蓝藻门(蓝绿色藻类)，叶绿素限于叶绿体中。叶绿素有几种类型，但是所有叶绿素都包含镁和铁元素。一些植物(例如，褐色海藻、红色海藻、铜山毛榉树)包含附加的色素，这些附加的色素掩盖了绿色素的绿色。) |
| 同位素 | isotope One or two or more atoms with the same atomic number that contain different numbers of neutrons (一个或两个或多个具有相同原子序数却包含不同中子数的原子。) |
| 同位素 U²³⁵加浓的铀 | enriched uranium |
| 同位素指示剂 | tracer element |
| 同位素指示剂 | tracer A minute quantity of radioactive isotope used in medicine or biology to study the chemical changes within living tissues (用于医学或生物学来研究生物组织化学变化的一分钟量放射性同位素。) |
| 同位素放射性示踪物 | radioactive tracer |
| 复合因素 | factor complex |
| 市场因素 | factor market Significant elements or reasons for an outcome in the buying, selling, and trading of particular goods or services (在购买、销售和特定货物或服务交易中的影响结果的重要因素。) |
| 微痕量元素 | trace element |
| 微量元素 | trace element Any of various chemical elements that occur in very small amounts in organisms and are essential for many physiological and biochemical processes (任何在生物体中出现的数量很少的、但对于很多生理和生化过程必不可少的不同的化学元素。) |
| 抗生素 | antibiotic A chemical substance, produced by microorganisms and synthetically, that has the capacity to inhibit the growth of, and even to destroy, bacteria and other microorganisms (由微生物制造或人工合成的化学物质，它具有抑制，甚至破坏细菌和其它微生物生长的能力。) |
| 排放因素 | emission factor |
| 放射性元素 | radioelement An element that is naturally radioactive (具有天然放射性元素的物质。) |
| 有机卤素化合物 | organohalogen compound Organic compounds containing a C-halogen bond (含碳和卤素的化合物。) |
| 毒素 | toxin A poisonous substance generally of plant or animal origin (通常指植物或动物源的一种有毒物质。) |
| 毒素阈值 | threshold of harmfulness |
| 毒素阈值 | threshold of noxiousness |
| 环境同位素 | environmental isotopes |
| 环境因素 | site factors |
| 环境因素 | environmental factors |
| 环境地球化学因素 | geogenic factor Geogenic factors are those which originate in the soil, as opposed to those of anthropic origin (anthropogenic) (源于土壤，而非源于人(人为)的因素。) |
| 生境因素 | site factors |
| 生态因素 | ecological factors |
| 生态因素 | ecological factor An environmental factor that, under some definite conditions, can exert appreciable influence on organisms or their communities, causing the increase or decrease in the number of organisms and/or changes in the communities (在给定的条件下，对生物体或其群落施加的可观影响，引起生物体数量的增减或生物群落内部变化的环境因素。) |
| 生物因素 | biotic factor The influence upon the environment of organisms owing to the presence and activities of other organisms, as distinct from a physical, abiotic, environmental factor (由于存在和其他生物有机体的活动对生物环境的影响。不同于物理、非生物、环境因素。) |
| 痕 微量元素 | trace element |
| 示踪痕量元素 | tracer element |
| 社会经济因素 | socioeconomic factor An essential element in a society's make-up, organization or behavior that combines financial dimensions with inter-personal or inter-group dynamics (一个社会的组成，组织或行为的基本要素，它结合了人际或群体间的财务方面。) |
| 第一族元素 | element of group Any of the monovalent metals lithium, sodium, potassium, rubidium, caesium, and francium, belonging to group 1A of the periodic table. They are all very reactive and electropositive; alkaline (任何单价金属，如：锂、钠、钾、铷、铯，属于周期表的1A族，反应性高，带正电。) |
| 第七族元素 | element of group Any of the elements of the halogen family, consisting of fluorine, chlorine, bromine, iodine, and astatine (卤族元素，包含氟、氯、溴、碘、砹。) |
| 第三族元素 | element of group Group III consists of two subgroups: group IIIb and group IIIa. Group IIIa consists of scandium, yttrium, and lanthanium, which is generally considered with the lanthanoids, and actinium, which is classified with the actinoids. Group IIIb, the main group, comprises boron, aluminium, gallium, indium, and thallium (第三族元素，包含两个子族：3b和3a族。3a族包含通常被归为镧系的钪、钇、镧和是属于辐射性元素的锕。3b族包含硼、铝、镓、铟、铊。) |
| 第二族元素 | element of group Any of the divalent electropositive metals beryllium, magnesium, calcium, strontium, barium, and radium, belonging to group 2A of the periodic table; alkaline earth metals (任何带正二价电荷的金属，如：铍、镁、钙、锶、钡、镭属于周期表的第2A族。) |
| 第五族元素 | element of group Group V consists of two subgroups: group Vb, the main group, and group Va. Group Va consists of vanadium, niobium, and tantalum, which are generally considered with the transition elements. The main group consists of nitrogen, phosphorus, arsenic, antimony, and bismuth (第五族元素，包含两个子族：主族56及5a族。5a族包含钒、铌和钽，通常被归为过渡金属元素。主族5b包含氮、磷、砷、锑和铋。) |
| 第六族元素 | element of group Group VI consists of two subgroups: group VIb, the main group, and group VIa. Group VIa consists of chromium, molybdenum, and tungsten. The main group consists of oxygen, sulphur, selenium, tellurium, and polonium (第六族元素包含两个子族：主族6b及6a族。6a族包含铬、钼、和钨。主族6b族包含氧、硫、硒、碲、和钋。) |
| 第四族元素 | element of group Group IV consists of two subgroups: group IVb, main group, and group IVa. Group IVa consists of titanium, zirconium, and hafnium which are generally classified as transition metals. The main group consists of carbonium, silicium, germanium, tin, and lead. The main valency of the elements is IV, and the members of the group show a variation from nonmetallic to metallic behaviour in moving down the group. The reactivity of the elements increases down the group from carbon to lead. All react with oxygen on heating (第四族元素，包含两个子族：主族4b及4a族。4a族包含通常被归为过渡金属元素的钛、锆和铪。4b族包含碳、硅、锗、锡、和铅。主要的价数是4价。此族排列从上方的非金属元素至下方的金属元素。元素的反应性由碳至铅递增，且所有元素皆可与氧在加热状况下反应。) |
| 纤维素 | cellulose The main polysaccharide in living plants, forming the skeletal structure of the plant cell wall; a polymer of beta-D-glucose linked together with the elimination of water to form chains of 2000-4000 units (活的植物中主要的多醣，形成植物细胞壁的支撑结构; 一种聚合物，由β-D-葡萄糖通过脱水形成，含有2000-4000个单元的链。) |
| 纤维素工业 | cellulose industry No definition needed (无需定义) |
| 维生素 | vitamin An organic compound present in variable, minute quantities in natural foodstuffs and essential for the normal processes of growth and maintenance of the body (在自然食品中出现的可变的、微量的有机化合物，它对于身体的成长过程和保养是必不可少的。) |
| 诱变剂，诱变因素 | mutagen An agent that raises the frequency of mutation above the spontaneous rate. An agent that causes changes to plants and animals, particularly to their genetic material and especially at the time of reproduction. Certain chemicals and forms of radiation are powerful mutagens that damage the DNA, or genetic material in the centre of every cell of a living organism (增加突变频率而高于自发节律的药剂。药剂导致植物和动物特别是其遗传物质的变化，尤其是在繁殖的期间。某些化学物质和辐射诱变形式对DNA或每个生物体细胞中心的遗传物质造成强力突变。) |
| 贝类毒素, 瘫痪的 | paralytic shellfish poisoning |
| 贝类毒素, 腹泻的 | diarrhetic shellfish poisoning |
| 过渡元素 | transition element One of a group of metallic elements in which the members have the filling of the outermost shell to 8 electrons interrupted to bring the penultimate shell from 8 to 18 or 32 electrons; includes elements 21 through 29 (scandium through copper), 39 through 47 (yttrium through silver), 57 through 79 (lanthanum through gold), and all known elements from 89 (actinium) on (一类金属元素，这些元素最外层的8个电子未填满，导致倒数第二层有8到18或32个电子。这此元素包括21至29号元素(钪至铜)，39至47号元素(钇至银)，57至79号元素(镧至金)，以及89号以后的所有已知的元素。) |
| 选定的生态要素 | selected ecological component |
| 重要生态系统要素 | valued ecosystem component An appraised, evaluated or estimated element or ingredient of a biological community and its non-living environmental surroundings (一个生物群落及其非生物环境的评价、评估或预测的元素或组成成分。) |
| 锡族元素 | tin A metallic element, occurring in cassiterite, that has several allotropes; the ordinary malleable silvery-white metal slowly changes below 13.2°C to a grey powder. It is used extensively in alloys, especially bronze and pewter, and as a noncorroding coating for steel; element (金属元素，存在于锡石中，有几个同素异形体，一般可锻铸银白色金属，低于13.2℃缓慢的变化成灰色粉末。它广泛用于合金，特别是铜、锡，并作为钢铁不腐蚀的涂层。) |
| 长期生长抑制素 | long-term retardant |
| 集光叶绿素蛋白复合体 | light-harvesting chlorophyll-protein complex |
| 集光叶绿素-蛋白质复合体 | light harvesting chlorophyllprotein complex |
| 集光色素复合体 | light-harvesting pigment complex |
| 零族元素 | element of group 0 A group of monatomic gaseous elements forming group 18 (formerly group 0) of the periodic table: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn) (构成周期表第18族(早期被称为0族)的单原子气体，包含：氦、氖、氩、氪、氙、氡。) |
| 非生物因素 | abiotic factor Physical, chemical and other non-living environmental factors. They are essential for living plants and animals of an ecosystem, providing the essential elements and nutrients that are necessary for growth. The abiotic elements also include the climatic and pedologic components of the ecosystem (物理，化学和其他非生物环境因素。他们对于生态系统中的植物和动物至关重要，提供生长必须的基本要素和营养素。非生物因素还包括生态系统的气候和土壤的组成部分。) |
| 鱼毒素 | ichthyotoxins |
