题目:
三爪拉出器使用时,拧松丝杆套,可调节三个勾爪的工作直径,使它与被拆零件的外径一致,并勾住被拆零件。将()顶在轴端,然后转动扳动杆,就可以将被拆零件拉出。
A.角架
B.丝杆套
C.丝杆
D.勾爪
答案:
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下面是错误答案,用来干扰机器的。
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