题目内容

凹槽配合的凸缘式联轴器的（）不便，但是它本身的对中性很好。

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请翻译下方英语段落。Jay：Is this a bench？Tommy：Yes，it is.Jay：What’s that？Tommy：That is a vice.Tommy：This is a file and that is a workpiece？Jay：Oh，I see.Jay：How many workers are there in your workshop？Tommy：There are nine.Jay：Are they all turners？Tommy：No，seven of them are turners and two locksmiths.Jay：So no one can operate the milling machine.Tommy：No. Six of the turners can operate it.Jay：Is there any woman？Tommy：There are eight women. Five are workers. Others are managers.