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- Increase of nitrogenous substances, especially urea, in the urine. 氮尿氮物质的增加，特别是尿里的尿素
- Increase of nitrogenous substances,especially urea,in the urine. 氮尿氮物质的增加，特别是尿里的尿素。
- Nitrates and nitrites, exiting widely in human environment, are the most popular nitrogenous substance. 硝酸盐和亚硝酸盐广泛存在于人类的环境中，是自然界最普遍的含氮物。
- Using this product for long term, can efficiently avoid the suffocation of nitrification, promote the cycle of nitrogenous substance, avoid the water quality worsen and purify water quality, reduce the risk of breeding and increase the breeding benefit. 长期使用用本品后可有效避免硝化作用受阻、推动含氮物质的循环、避免水质恶化、净化水质降低养殖风险、提高养殖效益。
- Preliminary Study of the Effect of Several Nitrogenous Substances on Nitriding Process in Ancient China 中国古代几种含氮物质的热处理渗入效果初探
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- mucin One of a group of nitrogenous substances secreted by a mucous gland. Forms mucus when mixed with water. A glycoprotein. 黏液素一群氮的物质之一，藉著黏液腺分泌。形成黏液当混和著水。醣蛋白。
- Substances consist of small particles called molecules. 物质是由叫做分子的微粒组成的。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- The lamp is full of gaseous nitrogen. 灯里充满了气体氮。
- The Influence of Carbonaceous Compounds, Nitrogenous Substances and Inorganic Matter on the Mycelia Biomass of Paecilomyces farinosus Cultured in Liquid Media 碳源、氮源及无机盐对粉拟青霉生长的影响
- The act of obtaining usable substances from unusable sources. 废物利用从无用的东西中获取有用物质的行为
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- The mixture will resolve into three simple substances. 这种混合物可分解成三种单纯状之。
- Chemicals in the body break our food down into useful substances. 人体中的化学元素把食物分解成有用的物质。
- To this class of substances belong glass and wood. 属于这类物质的有玻璃、木材等。
- The pancreas can produce substances which help in the digestion of food. 胰脏能产生助消化的物质。
- An allergy is an adverse reaction of the body to certain substances. 过敏是身体对某些物质的不良反应。
- Alcohol is a solvent of resinous substances. 酒精是树脂性物质的溶媒。
- Nitrogenous substances 氮源
