The effects of Cu on rice at same level of N fertilizer were studied.
本文研究了微量元素铜在同样的氮肥量水平下对水稻生育的影响。
The various effects on synthesis of N-methyl-carbamyl chloride were studied. Temperature is most important one.
介绍了影响N -甲氨基甲酰氯合成的各种因素，其温度是主要影响因素。
The various effects on synthesis of N-methyl-carbamyl chloride were studied. Temperature is most important one.
介绍了影响N -甲氨基甲酰氯合成的各种因素，其温度是主要影响因素。
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