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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