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- Urea is commonly used as the source of nitrogen in foliage sprays. 尿素作为氮素给源普遍地应用于叶面喷布。
- Never vent hydrogen from a high pressure source such as a cylinder in order to remove contaminants. Always use an external source of nitrogen or air for this purpose. 决不允许为了吹除杂质从高压气源,例如气瓶中放出氢气。做类似事情时,只能用氮气或空气作为外在气源。
- As an effective tracing method, stable nitrogen isotope is significant for studying the nitrogen cycling, especially for identifying source of nitrogen pollution. 稳定氮同位素作为一种有效的示踪手段,在研究氮循环特别是污染氮源的识别方面有重要意义。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- My wages are the principal source of my income. 薪金是我收入的主要来源。
- Solar energy is a new kind of source of energy. 太阳能是一种新型能源。
- The sun is the ultimate source of energy. 太阳是能量的最基本来源。
- A source of irritation or annoyance. 令人生气的事或者引起烦恼之事
- The groundwork or source of something. 基础,根源某事物的基础工作或根源
- Where is the source of the Rhine? 莱茵河发源于何处?
- 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?
- He's been a source of discord and worry. 他成为不和和烦恼的根源。
- A source of harassment, annoyance, or pain. 使人痛苦的东西骚扰,烦恼或痛苦的来源
- Hard work is the ultimate source of success. 努力工作是成功之本。
- The crux of the matter was a lack of nitrogen. 问题的关键在于缺少氮。
- Do you know the source of Amazon River? 你知道亚马逊河的源头吗?
- urea is commonly used as the source of nitrogen in foliage sprays 尿素作为氮素给源普遍地应用于叶面喷布。
- He is a bit coy when ask about the source of his income. 问起他收入的来源,他就有些吞吞吐吐。
- Among the blue-green algae are many species of nitrogen fixation. 许多种蓝藻有固氮的能力。