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？

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.

请翻译下段英文。
Jay：How many machine tools are there in your factory？
Tommy：Ten.
Jay：What kind of machine tools are they？
Tommy：There are four lathes，three milling machines，two shapers and one drilling machine.
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 them are turners can operate it.
Jay：Is there any woman？
Tommy：There are eight women. Five are workers. Others are managers.