填空题 形位公差带的形状由被测要素的特征和设计要求所决定,它共有()种形式。
问答题 阅读下图,回答下列问题: 1、此件长、宽、高的最大尺寸是多少? 2、此图尺寸是公制还是英制?根据何在? 3、哪一个尺寸要求最精确? 4、哪一部分有位置公差要求? 5、此图属第几角投影?根据何在?
问答题 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.