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By increasing the output flow rate of side stream,the concentrations of formic acid and ch...

通过增大侧线抽出量，可降低富集区甲酸和氯离子的浓度，减缓设备的腐蚀速率，延长设备使用寿命。

He says it is only in recent history that people think of happiness as a natural human right.

他说只是在近代人们考虑幸福，把它作为人类的本能的权力来考虑。