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1·The gases that may be warming the planet will have their main effect many years hence.

这些可能正在使行星变暖的气体，其重要影响将在许多年之后显现。《柯林斯英汉双解大词典》

2·What is the main effect of aging population?

什么是人口老化的主要影响？

3·The main effect was on the distribution of sales.

唯一影响是销售分配的不同。

4·The main effect of the crisis has been on unemployment.

这次危机一直以来主要影响着失业率。

5·The main effect of interferon is anti viral immune regulation.

干扰素的主要作用是抗病毒的免疫调节。

6·The main effect is to raise the fundamental slosh mode frequency.

主要作用是提高基本的晃动频率。

7·The steric structure is the main effect on the herbicidal activity as results.

研究结果表明，影响其药效的主要因素是空间结构。

8·The main effect may be social distancing : masks scare people away from one another.

口罩的主要作用可能是产生“社会距离”：口罩产生的恐慌心理使人们彼此疏远。

9·The main effect of these schemes would be to raise the costs of cutting emissions.

上面这些计划的实施将会增加削减排放的成本。

10·Computation results show that the low order modes take main effect in sound radiation.

数值计算结果表明低阶模态对壳体声辐射起着主要作用。