这两个交替过程可以用“滑-粘”模型来解释。
周期性通入空气和氮气来实现厌氧-好氧交替过程。
The alternation of anaerobic process and aerobic process were realized by periodical aeration of air and nitrogen.
结果表明，萃取反萃交替过程的效率高于通用的多级逆流萃取过程。
The results of computation showed that the efficiency of process with alternative extraction and stripping is higher than that of common multistage counter-current extraction process.
人的一生，在不断地犯错和修正错误的交替过程中，逐渐走向成熟和完善的。
One will get mature and perfect during the process of error-making and error-correcting in his life, so we should not treat the students' errors in a rough way.
人的一生，在不断地犯错和修正错误的交替过程中，逐渐走向成熟和完善的。
One will get mature and perfect during the process of error-making and error-correcting in his life, so we should not treat the students' errors in a rough way.
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