| nesting area (A place where birds gather to lay eggs) |
巢区 |
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| net resource depletion (The total decrease in the amount of natural materials available for use by humans and other living beings) |
资源净损耗 |
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| net sink strength |
净代谢库能力 |
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| net worth |
资本净值 |
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| netting policy (All emission sources in the same area that are owned or controlled by a single company are treated as one large source, thereby allowing flexibility in controlling individual sources in order to meet a single emissions standard; emissions trading) |
扣抵政策排放贸易, 同一地区由一家公司所拥有或控制的所有排放源被视为一个大排放源，从而允许灵活地控制个体的来源，以满足单一的排放标准。 |
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| neurotoxicity (The occurrence of adverse effects on a nervous system following exposure to a chemical) |
神经中毒性 |
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| neutralisation (To make a solution neutral by adding a base to an acidic solution, or an acid to a basic solution) |
中和作用 |
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| new community (A sociopolitical, religious, occupational or other group of common characteristics and interests formed as an alternative to social, and often residential, options currently available) |
新社区 |
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| new installation (A device, system, or piece of equipment that has been recently installed) |
新设备 |
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| new material (Novel high-performance materials obtained through the interdisciplinary research of chemistry, applied chemistry, chemical engineering, and mechanical engineering) |
新材料 |
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| new technology (Electronic instruments and devices which have recently been developed and are been introduced into industry. New technologies have been introduced often in almost total ignorance or disregard of the biological and ecological systems that they subsequently disturb, and of the dynamic and evolving nature of living systems) |
新技术 |
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| new town (Any of several recent urban developments that constitute small and essentially self-sufficient cities with a planned ordering of residential, industrial, and commercial development) |
新城镇 |
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| new town |
卫星城 |
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| New York Department of Environmental Conservation |
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| newsgroup (A discussion group on a specific topic maintained on a computer network, frequently on the Internet) |
新闻组 |
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| newsletter (A printed periodical bulletin circulated to members of a group) |
时事通讯 |
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| nickel (A malleable ductile silvery-white metallic element that is strong and corrosion-resistant, occurring principally in pentlandite and niccolite: used in alloys, especially in toughening steel, in electroplating, and as a catalyst in organic synthesis) |
镍 |
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| NIMBY aptitude (aptitude "not in my back yard"; Not In My BackYard: phrase used to describe people who encourage the development of agriculture land for building houses or factories, provided it is not near where they themselves are living) |
地区性自我保护主义 |
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| nitrate (Any salt or ester of nitric acid, such as sodium nitrate) |
硝酸盐 |
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| nitrification (The process by which ammonia compounds, including man-made fertilizer and the humus provided by organic matter or plant and animal origin, are converted into nitrites and then nitrates, which are then absorbed as a nutrient by crops. Excess nitrate can be leached into surface waters and groundwaters, causing pollution. Excess nitrate may also be converted by microbes back into gaseous nitrogen, which is an important greenhouse gas, and released back into the atmosphere. The ultimate source of nitrogen in the ecosystem is the molecular nitrogen in the atmosphere. To a very limited extent, some dissolves in water. However, none is found in rock) |
硝化作用 |
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