N use efficiency 氮效率 ; 氮素利用效率
n use 氮利用
n-use efficiency 氮素利用效率
fertilizer-n use 氮肥利用
n fertilizer use 氮肥利用
Over-use N fertilizer may not only cause economic losses, but produce many environmental problems.
过量的施用氮肥,不仅造成大量的经济损失,更重要的是引起一系列环境问题。
General Format: Author (corporations, governments) : Title of Site. Sponsor. Date Created (use n. d. if not given) medium. Date accessed.
基本格式:作者机构,:网页标题。网站,网页制作日月年若无,用。
In Wuhan, the government suggests that restaurants use "N-1" mode.
在武汉,政府建议餐馆采取“N-1”模式。
The U.N.report notes that the world's poorest countries are also the ones that use the most water for agriculture.
VOA: special.2010.04.05
And we talked about the equation you can use for radial nodes last time, and that's just n minus 1 minus l.
我们讲过这个用于,计算径向节点的方程,也就是n减去l减去1
So let's actually just simplify this to the other version of the Rydberg constant, since we can use that here.
除以n初始的平方,我们把它简化成,另一种形式的Rydberg常数。
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