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| Terms for subject Environment (7358 entries) |
| xenobiotic substance (A substance which would not normally be found in a given environment, and usually means a toxic chemical which is entirely artificial, such as a chlorinated aromatic compound or an organomercury compound) | 异生物质 | |
| yeast (Many species of unicellular fungi, most of which belong to the Ascomycetes and reproduce by budding. The genus Saccharomyces is used in brewing and winemaking because in low oxygen concentration it produces zymase, an enzyme system that breaks down sugars to alcohol and carbon dioxide. Saccharomyces is also used in bread-making. Some yeasts are used as a source of protein and of vitamins of the B group) | 酵母 | |
| yield (economy, Profit or income created through an investment or a business transaction) | 产量经济, 通过投资或商业交易所创造的利润或收入。 | |
| young | 年轻 | |
| youth (The state of being young; the period between childhood and adult age) | 青年 | |
| youth work (Job opportunities and employment for adolescents, either for financial reward or educational enrichment) | 青年工作 | |
| zero air mass | 零质量大气 | |
| zero discharge of pollutant | 零污染物排出 | |
| zero emission vehicle | 零排放车辆 | |
| zero environmental impact | 零环境影响 | |
| zinc (A brittle bluish-white metallic element that becomes coated with a corrosion-resistant layer in moist air and occurs chiefly in sphalerite and smithsonite. It is a constituent of several alloys, especially brass and nickel-silver, and is used in die-casting, galvanizing metals, and in battery electrodes) | 锌 | |
| zoning (Designation and reservation under a master plan of land use for light and heavy industry, dwellings, offices, and other buildings; use is enforced by restrictions on types of buildings in each zone) | 分区 | |
| zoological garden (Area in which animals, especially wild animals, are kept so that people can go and look at them, or study them) | 动物园 | |
| zoology (The study of animals, including their classification, structure, physiology, and history) | 动物学 | |
| zoonosis (Diseases which are biologically adapted to and normally found in animals but which under some conditions also infect man) | 动物传染病 |