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Terms for subject Environment (7347 entries)
gas purification (Removal of pollutants or contaminants from waste incineration or other combustion processes) 气体净化
gas reservoir (Large tank for storing coal gas or natural gas) 气藏
Gas Safety Management Regulations 天然气安全管理条例
gas supply (The provision and storage of any fuel gas, or the amount of any fuel gas stored, for the use of a municipality, or other fuel gas user) 燃气供应
gas washer 洗涤塔
gas washer 湿煤气净化器
gas washer 净气器
gaseous air pollutant (Uncondensed or volatile gases, usually comprised of chemical compounds, discharged to the atmosphere) 气状污染物
gaseous pollutant 气态污染物
gaseous state (State of matter in which the matter concerned occupies the whole of its container irrespective of its quantity) 气态
gasification (1. Any chemical or heat process used to convert a substance to a gas. 2. The production of gaseous fuels by reacting hot carbonaceous materials with air, steam or oxygen. The process takes place at high temperature. The gasification product is a mixture of combustible gases and tar compounds, together with particles and water vapour. Depending on the gasification method, the proportion of components varies, but common to all the processes is that the gas has to be purified before it can be used directly in a gas engine or a gas turbine) 气化
gasohol (A mixture of 80% or 90% petrol with 20% or 10% ethyl alcohol, for use as a fuel in internal combustion engines) 乙醇汽油
gasoline engine (An internal combustion engine that uses a mixture of air and gasoline vapour as a fuel) 汽油发动机
gasoline engine 汽油发动,内燃
gastropod (Any mollusc of the class Gastropoda, typically having a flattened muscular foot for locomotion and a head that bears stalked eyes) 腹足动物
gaswork (Place where gas, especially coal gas, is made) 燃气制造厂
gemmule 〔原〕
gender issue (A point, matter or dispute concerning the capabilities, societal roles or other differences and divisions between women and men, especially the relative weight of biological and physical difference versus culture and socialization as a cause of those distinctions) 性别问题
gene (A unit of heredity composed of DNA occupying a fixed position on a chromosome. A gene may determine a characteristic of an individual by specifying a polypeptide chain that forms a protein or part of a protein (structural gene); or repress such operation (repressor gene)) 基因
gene bank (Storehouses of seeds or vegetative tissue, kept in low humidity and temperature, to help maintain genetic diversity. Sometimes known as seed banks or germ plasm banks. their contents mostly originate from a wide range of primitive strains and wild crop varieties. The International Board for Plant Genetic Resources (IBPGR), which was established in 1974, promotes the collection, documentation, evaluation, conservation and eventual use of genetic resources of significant plant species. Gene banks are the subject of international controversy because they contain seeds that have mostly been acquired from the developing countries by the industrially rich countries, where they have been used in breeding programmes to develop new strains. Instead of taking decades over a traditional plant breeding programme by fertilization, it is now possible to manipulate directly the genes of plants, creating genetically modified organisms (GMOs), which are plants modified to give a higher resistance to disease and improved growth and yields and, therefore, increase the profit of the plant breeder and farmer) 基因库