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Terms for subject Environment containing | all forms
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从沉淀室排出的在养殖单元底部积累的固体物质和水的混合物。污水处理中:在大部分液体从污水中被除后保留下来的泥泞、半固体沉淀物.sludge
养分nutrient removal Elimination of nutrients as, for example, from sewage in order to prevent eutrophication of water in reservoirs (消除所有的营养物质,例如,为了防止储水池中水的富营养化而从污水中实施养分去除。)
化学chemical decontamination Removal of chemical substances from a building, a watercourse, a person's clothes, etc. (从建筑、水道、衣服等清除某些化学物质。)
de-inking Series of processes by which various types of printing inks are removed from paper fibre pulp during the pre-processing and recycling of recovered paper products. Particularly necessary where high quality and whiteness of the finished product are required (回收纸产品的预处理和回收利用所需,将各种类型的印刷墨从纸制产品中去除的过程。 特别是需要获得高质量的洁白产物。)
氧核糖核酸DNA The principal material of inheritance. It is found in chromosomes and consists of molecules that are long unbranched chains made up of many nucleotides. Each nucleotide is a combination of phosphoric acid, the monosaccharide deoxyribose and one of four nitrogenous bases: thymine, cytosine, adenine or guanine. The number of possible arrangements of nucleotides along the DNA chain is immense. Usually two DNA strands are linked together in parallel by specific base-pairing and are helically coiled. Replication of DNA molecules is accomplished by separation of the two strands, followed by the building up of matching strands by means of base-pairing, using the two halves as templates. By a mechanism involving RNA, the structure of DNA is translated into the structure of proteins during their synthesis from amino acids (遗传的基础物质。存在于染色体,由不分支的长链核甘酸分子所组成。 每个核甘酸由磷酸、脱氧核糖和四个含氮碱基(腺嘌呤、鸟粪嘌呤、胞嘧啶、胸腺嘧啶)中之一所组成。 DNA链上核甘酸可能的排列顺序是无限多。 通常两条脱氧核醣核酸链通过碱基配对平行排列形成双螺旋结构。 DNA分子的复制需要将两DNA链分离,然后两链各自作为范本,以碱基配对进行复制。 在胺基酸的合成中,经由含有核醣核酸的机制,DNA的结构被转译进入蛋白质的结构中。)
decontamination The removing of chemical, biological, or radiological contamination from, or the neutralizing of it on a person, object, or area (去除或中和存在于人体、物体或某区域内的化学性、生物性、或放射性污染。)
污指数decontamination factor
degreasing 1. Removing grease from wool with chemicals. 2. Removing grease from hides or skins in tanning by tumbling them in solvents. 3. Removing grease, oil, or fatty material from a metal surface with fumes from a hot solvent (1. 使用化学药剂以去除羊毛中的油脂。 2.在制革中经由翻滚以去除毛皮的油脂。 3. 以热溶剂蒸气从金属表面去除油脂、油、或脂肪物质。)
除一氧化碳carbon dioxide removal
的火线lost line fire
放射性radioactive decontamination The removal of radioactive contamination which is deposited on surfaces or may have spread throughout a work area. Personnel decontamination is also included. Decontamination methods follow two broad avenues of attack, mechanical and chemical (去除附着在表面并可能在工作区扩散的放射性污染,也包括人员的去污。去污方法有机械方法和化学方法两种。)
盐化water desalination Any mechanical procedure or process where some or all of the salt is removed from water (去除水中的部分或全部盐的任何手工程序或过程。)
除矿物质water demineralisation The removal of minerals from water by chemical, ion-exchange, or distillation procedures (通过化学、离子交换、或蒸馏程序去除水中的矿物质。)
phosphate removal Replacement of phosphate in detergents by environmentally safer substances, such as zeolite. The substitute will not act as a nutrient, and so will not cause eutrophication as a result of the accelerated growth of plants and microorganisms if it is released into waterways (使用环境安全的物品更换磷酸盐的清洁剂,例如沸石。该替换不会作为营养物质,因此即使它被释放到水道,也不会造成河水富营养化,从而加速植物和微生物的生长。)