| English | Chinese |
| biochemical oxygen demand The amount of oxygen used for biochemical oxidation by a unit volume of water at a given temperature and for a given time. BOD is an index of the degree of organic pollution in water | 生化需氧量 (在特定温度和给定的时间内，单位体积的水生化氧化的耗氧量。BOD是水体有机污染的程度的指数。) |
| chemical oxygen demand The quantity of oxygen used in biological and non-biological oxidation of materials in water; a measure of water quality | 化学需氧量 (水中生物或非生物氧化作用中消耗氧的量，是对水体质量的一种评估。) |
| energy demand | 能源需求 |
| nitrogenous biochemical oxygen demand | 含氮生化需氧量 |
| oxygen demand | 需【耗】氧量 |
| supply and demand The relationship between the amount or quantity of a commodity that is available for purchase and the desire or ability of consumers to buy or purchase the commodity, which, in theory, determines the commodity's price in a free market | 供需 (可供购买的一定金额或数量的商品与消费者购买的愿望或购买能力之间的关系，这种关系在理论上，决定了自由市场的商品的价格。) |
| water demand | 水需求 |
