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| Terms for subject Environment (7397 entries) |
| decontamination facility | 净化【去污】设备 | |
| decontamination factor | 去污指数 | |
| decree (A declaration of the court announcing the legal consequences of the facts found) | 公告 | |
| deep sea (Region of open ocean beyond the continental shelf) | 深海 | |
| deep sea deposit | 深海矿床 | |
| deep sea fishing (Fishing in the deepest parts of the sea) | 深海捕鱼 | |
| deep sea mining (The most valuable of the marine mineral resources is petroleum. About 15% of the world's oil is produced offshore, and extraction capabilities are advancing. One of the largest environmental impacts of deep sea mining are discharged sediment plumes which disperse with ocean currents and thus may negatively influence the marine ecosystem. Coal deposits known as extensions of land deposits , are mined under the sea floor in Japan and England) | 深海采矿 | |
| deep-sea disposal (The disposal of solid waste or sludge by carrying the wastes out to sea, usually in a barge, and dumping into deep water) | 深海丢弃 | |
| deep-seated fire | 深层火情 | |
| deer (The common name for 41 species of even-toed ungulates that compose the family Cervidae in the order Artiodactyla; males have antlers) | 鹿 | |
| defence (The act or process of protecting citizens or any geographical area by preparing for or by using military means to resist the attack of an enemy) | 防卫 | |
| defense against gas | 防毒气 | |
| defensive measure | 防御手段 | |
| deficiency stress strategy | 缺乏胁迫策略 | |
| define the file | DTF 指令 | |
| defoliation (1. The drop of foliage from plants caused by herbicides such as Agent Orange, diuron, triazines, all of which interfere with photosynthesis. The use of defoliants, as in Vietnam or in jungle clearance for agriculture, can permanently destroy tropical forests. Once the tree cover is removed, the soil is subjected to erosion and precious nutrients are rapidly leached away. 2. Destroying (an area of jungle, forest, etc.) as by chemical sprays or incendiary bombs, in order to give enemy troops or guerilla forces no place of concealment) | 使叶掉落 | |
| deforestation (The removal of forest and undergrowth to increase the surface of arable land or to use the timber for construction or industrial purposes. Forest and its undergrowth possess a very high water-retaining capacity, inhibiting runoff of rainwater) | 森林砍伐 | |
| degradability (The capacity of being decomposed chemically or biologically) | 可降解性 | |
| degradation (A type of organic chemical reaction in which a compound is converted into a simpler compound in stages) | 降解 | |
| degradation of natural resources (The result of the cumulative activities of farmers, households, and industries, all trying to improve their socio-economic well being. These activities tend to be counterproductive for several reasons. People may not completely understand the long-term consequences of their activities on the natural resource base. The most important ways in which human activity is interfering with the global ecosystem are: 1. fossil fuel burning which may double the atmospheric carbon dioxide concentration by the middle of the next century, as well as further increasing the emissions of sulphur and nitrogen very significantly; 2. expanding agriculture and forestry and the associated use of fertilizers (nitrogen and phosphorous) are significantly altering the natural circulation of these nutrients; 3. increased exploitation of the freshwater system both for irrigation in agriculture and industry and for waste disposal) | 自然资源恶化 |