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- The absorption factor and absorption rate of nitrogen were analyzed. 分析了影响氮的吸收因素和氮的吸收率。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- The high rate of nitrogen and phosphorus is unfavourable to the photosynthesis of the phytoplankton. 过高的氮磷比不利于浮游植物进行光合作用。
- Further increases were obtained with higher rates of nitrogen fertilizer and stocking rates of 4.9 cows per ha. (Cowan et al. 1991). 增施氮肥可进一步提高产奶量,并且使每公顷奶牛载畜4.;9头(Cowan等1991)。
- The results indicated that the process was able to remove 90% total COD, 89% TSS, 93% VSS, and the removal rates of nitrogen and phosphorus were 80% and 40%, respectively. 结果表明,此系统可去除90%25总COD、89%25TSS、93%25VSS,氮和磷的去除率分别为80%25和40%25。
- HYV is required to possess higher photosynthetic efficiency and respond to high rates of nitrogen fertilizer and resist to lodging as well as maximize yield components. 高产品种要具备高光合效率、对高施氮量的反应、抗倒伏并使产量构成因素最大化。
- In rich fields, with the rising of application rate of nitrogen fertilizer, both the utilization efficiency and unit production rate of nitrogen fertilizer declined. 摘要在高肥力麦田中,随着氮肥施用量的不断增加,氮肥利用率下降,单位氮肥的增产量递减。
- Using struvite sediment to remove the nitrogen in waste water has many advantages,such as high removal rate of nitrogen and reaction speed,small amount of sludge,reclaiming the ammonia nitrogen etc. 在废水处理中采用鸟粪石沉淀法脱氮,具有氨氮去除率高、反应速度快、污泥体积小的优点,同时可以回收氨氮。
- What's the going rate of computer programmers? 计算机程序设计人员的一般工资是多少?
- The diphenylamine method could indicate the nitrogen status in plant which changed with the different rate of nitrogen fertilizer application. it is more suitable to be used in the practice. 而二苯胺法测定结果可以反映作物体内硝态氮含量随施肥量变化情况,并且由于其快速、简便的特性,更适于在生产中推广应用。
- By power we mean the rate of doing work. 我们说功率就是指做功的速率。
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少?
- The crux of the matter was a lack of nitrogen. 问题的关键在于缺少氮。
- The rate of incidence of a disease. 发病率发生疾病的概率
- The rate of inflation must be held down. 通货膨胀率必须控制在低水平上。
- The rate of pay was built into her contract. 工资率已写进了她的合同。
- The rate of growth was unprecedented. 这个成长率是前所未有的。
- The car was going at the rate of 60 miles an hour. 汽车以每小时六十英里的速度行驶。
- Among the blue-green algae are many species of nitrogen fixation. 许多种蓝藻有固氮的能力。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries