| Chinese | English |
| 内含样品 | embedded specimen |
| 含氮生化需氧量 | nitrogenous biochemical oxygen demand |
| 含氯氟烃 | chlorofluorocarbon Gases formed of chlorine, fluorine, and carbon whose molecules normally do not react with other substances; they are therefore used as spray can propellants because they do not alter the material being sprayed (由氯、氟、碳组成的气体，其分子一般不与其它物质发生反应。它们以前被用作推进喷雾因为作为喷雾的时候它们本身并不发生改变。) |
| 含水土层 | aquifer Layers of rock, sand or gravel that can absorb water and allow it to flow. An aquifer acts as a groundwater reservoir when the underlying rock is impermeable. This may be tapped by wells for domestic, agricultural or industrial use. A serious environmental problem arises when the aquifer is contaminated by the seepage of sewage or toxins from waste dumps. If the groundwater in coastal areas is over-used salt water can seep into the aquifer (具有吸水及透水性的岩石、砂或砾石层。 当含水层下方岩层不透水时，含水层就成为地下水库，可以用水井抽水做为民生、农业或工业使用。 当含水层被污水或废弃物倾弃中有毒物质所污染时，将会造成严重的环境问题。 如果沿海岸的地下水被过度使用时，则会造成含盐的海水渗入含水层中。) |
| 含持水量 | moisture content |
| 含钙量 | calcium content Amount of calcium contained in a solution (溶液中钙的含量。) |
| 土壤含盐量 | soil salinity Measurement of the quantity of mineral salts found in a soil. Many semi-arid and arid areas are naturally salty. By definition they are areas of substantial water deficit where evapotranspiration exceeds precipitation. Thus, whereas in humid areas there is sufficient water to percolate through the soil and to leach soluble materials from the soil and the rocks into the rivers and hence into the sea, in deserts this is not the case. Salts therefore tend to accumulate (土壤中矿物盐量的测量。许多半干旱和干旱地区是天然含盐的。根据定义，这是一些水分蒸发量超过降水量的地区。因此，即使在潮湿地区有足够的水渗入土壤，滤出土壤中的可溶解物质和石块进入河流入海，而在沙漠情况并非如此，因此盐会积累。) |
| 毒性排放物含量 | toxic release inventory |
| 氧含量 | oxygen content Amount of oxygen contained in a solution (氧气的相对含量。) |
| 汽油含铅法 | lead-in-petrol law A binding rule or body of rules prescribed by a government to reduce or eliminate the lead content in petroleum fuels used in vehicular and other engines that pollute the air with lead-carrying exhaust (由政府指定的一项或一组必须遵守的规则，以减少或消除用于车辆和其它引擎中使用石油燃料所排出的含铅气体产生的污染。) |
| 海洋氯化物标准平均含量 | standard mean ocean chloride |
| 盐含量 | salt content Amount of salt contained in a solution (在溶液中盐的数量。) |
| 空气中含水克数 | grams of water in air |
| 血液含铅量 | lead level in blood A measure of the amount of lead or lead salts absorbed by the body as a possible sign of acute or chronic lead poisoning, which can affect the nervous, digestive or muscular systems (用于铅含量或机体铅盐吸收量的测量，作为急性或慢性铅中毒的一项合理的标志，铅中毒可影响神经系统、消化系统或肌肉系统。) |
| 铝含量 | aluminium content Amount of aluminium contained in a solution (溶液中铝的含量) |
