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- The residual nitrogen existed mainly in organic form or fixed NH 4 + in DCD treatment but mainly in NO 3 N form in other treatments. DCD处理肥料氮主要以有机固定态或粘粒矿物固定态存在 ,其次以NH4 N形式存在 ;
- The crop has been grown for many years on these soils on the residual nitrogen present in the soil from the native, leguminous vegetation. 在这种土壤里已经种植多年高粱了，依靠天然和豆科植物残存于土壤中的氮养分。
- The residual nitrogen existed mainly in organic form or fixed NH4(superscript +) in DCD treatment but mainly in NO3-N form in other treatments. DCD处理肥料氮主要以有机固定态或粘粒矿物固定态存在，其次以NH4-N形式存在；
- Conservation cultivation in winter, such as cover crops and non-tillage, can increase water content of soil, suppress soil erosion, and scavenge soil residual nitrogen. 摘要冬季种植覆盖作物结合免耕法构成的保护性耕作法，在冬春季土壤休闲时期可提高土壤含水率，抑制土壤风蚀，回收土壤残留氮素；
- Kowarsky residual nitrogen estimation 科瓦尔斯基残余氮定量法
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- 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。
- Nitrogen forms about 78% of the earth's atmosphere. 氮约占地球大气的百分之七十八。
- residual nitrogen 残余氮,剩余氯
- residual nitrogen time 残余氮时间
- The debate over the residual powers of the States has been long drawn out. 有关美国剩余的权力的争论已是旷日持久的了。
- Will you sunder nitrogen from air? 你能从空气中把氮气分离出来吗?
- A couple of seconds.No residual discomfort. 几秒钟时间,之后不适感不会有所遗留
- Nitrogen is the most commonly used gas. 氮气是最常用的气体。
- BA was a shortterm residual compound in the soil. 溴乙酰胺在土壤中为短残留化合物。
- Sample gas tubes are flushed with nitrogen. 采气管得用氮气吹扫。
- In DDTs the residual level of p,p? DDTs中p,p?
- The main reservoir of nitrogen is the atmosphere. 氮的主要蓄存库是大气层。
- Flush residual spill area with water. 用水冲洗泄漏残留物。
