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| Terms for subject Environment (7358 entries) |
| biochemical substance (Chemical substances that occur in animals, microorganisms, and plants) | 生化物质 | |
| biochemistry (The study of chemical substances occurring in living organisms and the reactions and methods for identifying these substances) | 生物化学 | |
| biocide (A diverse group of poisonous substance including preservatives, insecticides, disinfectants and pesticides used for the control of organisms that are harmful to human or animal health or that cause damage to natural or manufactured products) | 生物杀灭剂 | |
| bioclimatology (The study of climate in relation to fauna and flora) | 生物气候学 | |
| biocoenosis (A community or natural assemblage of organisms; often used as an alternative to ecosystem but strictly is the fauna/flora association excluding physical aspects of the environment) | 生物群落 | |
| bioconcentration factor (The quotient of the concentration of a chemical in aquatic organisms at a specific time or during a discrete time period of exposure, divided by the concentration in the surrounding water at the same time or during the same period) | 生物富集系数 | |
| biodegradability (The extent to which a substance can be decomposed - or rotted - by bacteria and fungi. Implies that residues from degradation are nontoxic. One of the most misleading claims in business, because shoppers often assume a biodegradable product to be harmless. Some harmful compounds take much longer to degrade than others and the product can harm the environment while it is rotting. Biodegradation may also be incomplete, sometimes leaving residues in the environment which are more harmful than the original substance. Accumulation in the environment of nonbiodegradable (or poorly biodegradable) substances, such as some biocides, can cause serious problems) | 生物降解 | |
| biodegradable pollutant (A pollutant which can be converted by biological processes into simple inorganic molecules) | 可生物降解的污染物 | |
| biodegradation (Breaking down of a substance by microorganisms) | 生物降解 | |
| biodiversity (1. Genetic diversity: the variation between individuals and between populations within a species; species diversity: the different types of plants, animals and other life forms within a region; community or ecosystem diversity: the variety of habitats found within an area - grassland, marsh, and woodland for instance. 2. An umbrella term to describe collectively the variety and variability of nature. It encompasses three basic levels of organisation in living systems: the genetic, species, and ecosystem levels. Plant and animal species are the most commonly recognized units of biological diversity, thus public concern has been mainly devoted to conserving species diversity) | 生物多样性 | |
| biodynamic agriculture | 生物动力农业 | |
| bioethics (The study of ethical problems arising from biological research and its applications in such fields as organ transplantation, genetic engineering, or artificial insemination) | 生物伦理学 | |
| biofiltration (The distribution of settled sewage on a bed of inert granular material through which it is allowed to percolate. In doing so, the effluent is aerated thus allowing aerobic bacteria and fungi to reduce its biochemical oxygen demand) | 生物过滤 | |
| biofuel (A gaseous, liquid, or solid fuel that contains an energy content derived from a biological source. The organic matter that makes up living organisms provides a potential source of trapped energy that is beginning to be exploited to supply the ever-increasing energy demand around the world. An example of a biofuel is rapeseed oil, which can be used in place of diesel fuel in modified engines. The methyl ester of this oil, rapeseed methyl ester (RME), can be used in unmodified diesel engines and is sometimes known as biodiesel. Other biofuels include biogas and gasohol) | 生物燃料 | |
| biogas (Gas, rich in methane, which is produced by the fermentation of animal dung, human sewage or crop residues in an air-tight container. It is used as a fuel, to heat stoves, lamps, run small machines and to generate electricity. The residues of biogas production are used as a low-grade organic fertilizer. Biogas fuels do not usually cause any pollution to the atmosphere, and because they come from renewable energy resources they have great potential for future use) | 沼气 | |
| biogeochemical cycle (Movement of chemical elements in a circular pathway, from organisms to physical environment, back to organisms. The process is termed a nutrient cycle if the elements concerned are trace elements, which are essential to life. A biogeochemical cycle occurs when vegetation decomposes and minerals are incorporated naturally in the humus for future plant growth) | 生物地理化学循环 | |
| biogeochemistry | 生物地球化学 | |
| biogeographical region (Area of the Earth's surface defined by the species of fauna and flora it contains) | 生物地理区域 | |
| biogeography (The science concerned with the geographical distribution of animal and plant life) | 生物地理学研究动植物的地理分布, 与动物和植物的地理分布有关的科学。 | |
| biologic (al) index of (water) pollution |