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- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- The effect of biosidal treatment of initial sediment,addition of inhibitor and addition of phosphorus on the transform of nitrogen and phosphorus in the sediment-water simulative system were studied. 研究了灭菌、抑制剂添加和磷添加对沉积物-水模拟系统中氮磷转化的影响,并利用试验后的上覆水培养四尾栅藻。
- Addition of nitrogenous fertilizer promoted the composting progress of CLR. 氮肥的加入促进了玉米叶片残体的腐解。
- The addition of fruit makes the cereal taste good. 加了水果使谷类食品变得可口。
- 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?
- Characterized by the addition of layers of woody tissue. 外长植物的具有木质组织层增加的特点的
- The crux of the matter was a lack of nitrogen. 问题的关键在于缺少氮。
- The addition of flowers created a pleasing effect. 花的加入产生了一个快乐的效果。
- Among the blue-green algae are many species of nitrogen fixation. 许多种蓝藻有固氮的能力。
- 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。
- Of freezing point of water by addition of salt. 因加盐于水而使冰点降低。
- Humidification Addition of water vapour to air. 在空气内加入水气。
- Addition of infra-red heating system? 使用红外线空气幕?
- Has an atmosphere, which is mainly made up of nitrogen. 它拥有主要由氮组成的大气。
- Humidification: Addition of water vapour to air. 加湿:在空气内加入水气。
- The amount of nitrogen needed will increase as yield increases. 随着产量增加，需氮量也要增加。
- The addition of Mg2+ could improve biomass. Mg2+的加入可以提高生物量。
- The discharge amount of nitrogen oxide can reduce 30%. 氮的氧化物排放量减少30%25。
- The addition of a column of figures; calculation. 相加一栏数字的相加；计算
