1.3.27 分数英寸、小数英寸与毫米对照 (表1-40)

表1-40分数英寸、小数英寸与毫米对照英寸(in)毫米(mm)1/641/323/641/165/643/327/641/89/645/3211/643/1613/647/3215/641/40.0156250.031250.0468750.06250.0781250.093750.1093750.1250.1406250.156250.1718750.18750.2031250.218750.2343750.250.3968750.7937501.1906251.5875001.9843752.3812 ......（本文共 1360 字 ）     [阅读本文]>>