| Chinese | English |
| 中等【平均】致死剂量 | median lethal dose |
| 中等【平均】致死时间 | median lethal time |
| 中等教育 | secondary education The years of instruction following elementary school and until the end of high school (在初等教育之后的教育，直到高中结束。) |
| 中等胁迫 | moderate stress |
| 初等教育 | primary education The first five or six years of instruction in elementary schools (第一个五年或六年制的小学教育。) |
| 噪声等效温差 | noise equivalent delta temperature |
| 火灾危险等级 | danger class |
| 社会不平等 | social inequality Unequal rewards or opportunities for different individuals within a group or groups within a society. If equality is judged in terms of legal equality, equality of opportunity, or equality of outcome, then inequality is a constant feature of the human condition (不等的奖励或集团内不同的个人或团体在社会上的机会。如果是在平等的法律平等，机会均等，或者是结果的平等来判断，那么不平等是人类状况的不变的特征。) |
| 禽群等级 | peck order |
| 禽群等级 | pecking order |
| 等效剂量 | equivalent dose A quantity used in radiation protection, expressing all radiation on a common scale for calculating the effective absorbed dose. The unit of dose equivalent is the rem. which is numerically equal to the absorbed dose in rads multiplied by certain modifying factors such as the quality factor, the distribution factor, etc. (放射保护中使用的量，为表达放射量，方便计算有效吸收剂量提供的统一度量。单位是rem。数量上等于1rad辐射下的吸收剂量乘以某些修正因子，例如质量因子，分布因子等。) |
| 等效零排放标准 | equivalent zero emission standard |
| 等高耕作 | contour farming The performing of cultivations along lines connecting points of equal elevation so reducing the loss of top soil by erosion, increasing the capacity of the soil to retain water and reducing the pollution of water by soil (沿着相同海拔高度的点连线耕作，这样可以降低表层土壤的侵蚀，提高土壤的保水能力，同时降低土壤造成的水体污染。) |
| 高等教育 | higher education Study beyond secondary school at an institution that offers programs terminating in undergraduate and graduate degrees (中学以后的教育，这类教育机构提供学士与研究所(硕士、博士)学位课程。) |
