... 9.3膨胀空气expanded air ，.4真空泵抽气率vacuum pump capacity 9.5有效储备量effective reserve ...
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因此，在大学英语教学中给学生传授有效的词汇习得策略以增加词汇有效储备量是当务之急。
It is it is imperative for college English teachers to help their students to enlarge their vocabulary storage by applying effective vocabulary acquisition strategies.
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