并针对控制及减少输入到地下水中总氮的总量提出了建议。
And we also give some advice on controlling and reducing the total quantity of TN, which was input into the groundwater.
叶绿素总量和叶片含氮量随氮素水平的提高而增加，但当继续提高氮素水平时，有饱和趋势；
Chlorophyll and nitrogen content can be increased to increase nitrogen level, but there is a saturation phenomenon.
氢和氮所存在的总量与理论计算匹配得很理想——实际上，它好得让宇宙论的学者声称这就是宇宙起源于大爆炸的最好证据。
The existing amounts of hydrogen and helium match theory perfectly - so well, in fact, that cosmologists claim this is the best evidence we have for the big bang .
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