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- residual nitrogen time 残余氮时间
- 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
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久,就会发酵。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- I think the work can be completed ahead of time. 我认为这项工作能提前完成。
- He will come on time even though it rains. 即使下雨,他还是会准时来的。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- Air consists chiefly of nitrogen. 空气主要由氮气组成。
- I need some time to orient my thinking. 我需要一些时间来使我的思想适应。
- A transistorize radio takes no time to warm up. 晶体管收音机不需要预热时间。
- At that time he had two helpers. 当时他有两个助手。
- I'm sorry to obtrude on you at such a time. 我很抱歉在这个时候打扰你。
- I referred to my watch for the exact time. 我看了一下手表好知道准确的时间。
- Nitrogen forms most of the Earth's air. 地球上空气的大部分成分是氮气。
- God mete out justice in his own good time. 羞恶自有报,只争迟与早。
- I spend most of my time scouting around for book. 我把大部分时间都用来找书了。