| Chinese | English |
| 不发达国家 | less developed country One of the world's poorest nations, typically small in area and population, with low per capita incomes, literacy levels and medical standards, subsistence agriculture and a lack of exploitable minerals and competitive industries (世界上最贫穷国家之一，显著特征是人口少、国土面积小、人均收入及文化水平医疗水平低、温饱型农业、缺少可开采的矿产和有竞争力的工业。) |
| 不受版权〔专利权〕限制 | public domain |
| 不受限制蒸腾 | unrestricted transpiration |
| 不可再生能源 | non-renewable energy resource Non-renewable resources have been built up or evolved over a geological time-span and cannot be used without depleting the stock and raising questions of ultimate exhaustibility, since their rate of formation is so slow as to be meaningless in terms of the human life-span (非再生能源是在地质时间跨度上已建成或进化而成的，如果没有消耗储备将不能使用，同时提出了最终耗竭问题，因为它们的形成速度如此缓慢以致于对于人类生活跨度而言毫无意义。) |
| 不可再生资源 | non-renewable resource A natural resource which, in terms of human time scales, is contained within the Earth in a fixed quantity and therefore can be used once only in the foreseeable future (although it may be recycled after its first use). This includes the fossil fuels and is extended to include mineral resources and sometimes ground water, although water and many minerals are renewed eventually (就人类历史时间尺度而言，地球中含有固定数量的自然资源，因此在可以预见的将来仅能被使用一次(尽管它可能在第一次使用后被再利用)。这包括化石燃料和扩展到包括矿产资源、有时也包括地下水，虽然水和一些矿物质最后将被更新。) |
| 不可逆转性 | irreversibility of the phenomenon That quality of a process that precludes a prior state from being attained again (一种过程特性，在该过程中不可再次回到已经执行过的某个过程状态。) |
| 不在现场 | off-site Activities taking place or located away from the site (远离发生或现场的活动。) |
| 不当政府行为 | wrongful government act A deed performed by a government official or agent in exercise of police, constitutional, legislative, administrative or judicial powers that infringes upon the rights of another and causes damage, without protecting an equal or superior right (政府官员或机关在行使警察、宪法、立法、行政或司法权力时，侵犯他人的权利而导致危害，没有保护平等的或优先的权利的行为。) |
| 不易挥发物 | non-volatile substance Substance that is not capable of changing from a solid or liquid form to a vapour (不能从固体或液体形式转变为气体的物质。) |
| 不法行为 | wrongful act An act contrary to the rules of natural or legal justice (违反了自然或法律公正准则的行为。) |
| 不溶解性物质 | insoluble substance Substance incapable of forming a solution, especially in water (不能溶于溶液的物质，特别是指不溶于水。) |
| 不确定法律概念 | indefinite legal concept A condition or extent of time in a government enforced contract, instrument or agreement that lacks precision, distinguishing characteristics or fixed boundaries (政府强制执行缺乏精确度、可区别特征或固定边界的契约、手段或协定的一种状态或时间范围。) |
| 不间断蒸腾 | uninterrupted transpiration |
| 农业不动产 | agricultural real estate Property of agricultural land and anything permanently affixed to the land, such as buildings, fences, etc. (农业用地和土地上任何永久附属物(如建筑、栅栏等)的所有权。) |
| 同化产物储备不足 | inadequate carbohydrate reserve |
| 对药品的不良反应 | side effects of pharmaceutical drugs |
| 水分不稳定期 | hydrolabile phase (phasis hydrolabilis) |
| 水分不稳定的水分平衡 | hydrolabile water balance |
| 环境不友好工厂 | environmentally unfriendly firm Firms that do not comply with environmental regulations for the disposal of noxious wastes generated during the production cycle (在产品生产周期不遵守环境条例，违规处理生产产生的有毒废料工厂。) |
| 环境处理不当 | environmental misconduct |
| 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。) |
| 营养不良 | malnutrition Defective nutrition due to inadequate intake of nutrients or to their faulty digestion, assimilation or metabolism (不充足的营养摄取或有缺陷的消化、吸收或新陈代谢引起的有缺陷的营养补给。) |
