The mechanical clutch incorporates a coil spring (4), fixed at one end (5) to a driving or driven member (1), while the other end (3) is brought into the path of a lug (7) sliding on a driven or driving member (2) in order to engage the clutch. This gives a smooth coupling ...
选词填空。用所给单词和短语的正确形式填空。find,beautiful,arm,him,good at(1)I'm a robot(机器人).Here is my head.Here are my eyes, arms and legs.(2)Lingling is good at maths.She can answer all the questions.(3)Ink wash painting(水墨画) is an old, beautiful...
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at 是一个介词,后面不能直接加副词,look at here 不符合语法。而 way 有方向的意思,look this way 也就是往这里看。 Look this way! This peach tree is beginning to blossom. 看这里,这棵桃树要开花了。 look here你瞅瞅你;你...
大连理工大学建设工程学部水利工程学院成立于2009年9月22日,由原大连理工大学土木水利学院水利工程一级学科相关的8个研究所组建而成。学院现有1个一级学科— — 水利工程,是国家和辽宁省重点学科,涵盖5个二级学科博士点(水文学及水资源、水力学及河流动力学、水工结构工程、水利水电工程、港口、海岸及近海工程)和5个...