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- What Form of Nitrogen is Easily Absorbable by Crops? 什么形态的氮容易被作物吸收?
- The dominant forms of nitrogen are pyridinic and pyrrolic type, while the thiophenic type is the main form of sulfur. 氮以吡咯型及吡啶型氮为主，而硫以噻吩型硫为主。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- The influence of forms of nitrogen fertilizers and soil moisture on the transformation of external Cd in the paddy soil was investigated through laboratory incubation experiment. 作者单位：中国科学院南京土壤研究所土壤与农业可持续发展国家重点实验室;
- The distributions and functions of various forms of nitrogen in the biogeochemical cycling in the southern Yellow Sea surface sediments were investigated. 本文报道了南黄海表层沉积物中不同形态氮的区域分布特征及其在生物地球化学循环中的作用。
- In differen grain size sediments, the absolute contents of different transferable forms of nitrogen are the highest in fine sediments and the lowest in coarse sediments. 对于不同粒级的沉积物来说，细粒级沉积物中的可转化不同形态氮的绝对含量最高，粗粒级沉积物中不同形态氮的绝对含量最低；
- The each form of nitrogen not only was increased with long term application organic fertilizer and soybean straw ploughing under, but also nitrogen fraction was changed. 长期施用有机肥和大豆秸秆还田,不仅增加连作大豆白浆土中各形态氮含量,而且改变了土壤氮素组成。
- Most synthetic detergents are in the form of powder or liquid. 大多数合成洗涤剂呈粉状或液态。
- If all the transferable forms of nitrogen could take part in cycling in suitable conditions, their relative contributions to cycling decrease according to the orderof SOEF-N, IEF-N, SAEF-N and WAEF-N. 坐同一粒级沉积物中的可转化不同形态氮都能参与循环时，它们对氮循环的相对贡献从大至小依次为SOEF-N>IEF-N>SAEF-N>WAEF-N。
- The ginpole is the simplest form of derrick. 起重吊杆是一种最简单的起重机。
- For example, an adult male chum salmon on the spawning grounds contains an average of 130 grams of nitrogen, 20 grams of phosphorus and more than 20,000 kilojoules of energy in the form of protein and fat. 举例来说，产卵地的一条成年雄性狗鲑，体内平均含有130克的氮、20公克的磷，以及能量超过20000千焦耳的蛋白质及脂质。
- Some biological molecules have the form of a helix. 有些生物分子呈螺旋状。
- It is possible to transmute one form of energy into another. 把某种形态的能量改变成另一形态的能量是可能的。
- The Studies with infrared spectra and 15NO exchange experiments have proved the existence of nitrogen oxide chemisorbed on the reduced state molybdena-alumina catalyst in the form of dinitrosyl. 通过对红外光谱及同位素交换反应后的分析，证明吸附在还原态钼铝催化剂上的NO是以双亚硝酰基形式存在的.
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- There is a standard form of oath used in lawcourts. 法庭中使用的誓词有固定的格式。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- The elephant's trunk is a unique form of appendage. 象的鼻子是一种独特的附肢。
- There are a promoting action that potassium to absorption of nitrogen in sugar beet, namely cooperating application of nitrogen and potassium was useful to form of sugar beet output. 各器管的绝对含钾量均随施钾量的增加而提高。钾对氮的吸收有促进作用，即氮与钾配合施用有利于产量的形成。
- Addition and division are forms of computation. 加法和除法都是计算方法。
