如何拆卸铆接件?
参考答案:
铆接件一般是不拆卸的联结,如果铆钉松动或铆接零件需要更换时,可用扁铲把铆钉头铲掉,或者用电钻把铆钉钻掉,然后用小于铆钉直径的冲子冲掉剩余部分。
— When did you borrow the English story-book?
— I borrowed it last week. I ______ it for a week.
A. have bought B. have kept C. have borrowed
燃油母管压力不得超过(),不得低于()。