The Morse Taper(莫氏锥) was invented by Stephen A. Morse (also the inventor of the twist drill(也是麻花钻的发明人)) in the mid-1860s. Since then it has evolved to encompass smaller and larger sizes and has been adopted as a standard by numerous organizations, including the International Organization for Standardization (ISO) as ISO 296 and the German Institute for Standardization (DIN) as DIN 228-1. 8 @8 I3 \0 Z: x- o1 @! I0 m1 {$ Z0 v0 y7 C& T$ E
[ 本帖最后由 Mrjianhuili 于 2009-11-5 08:35 编辑 ]
0 z" O, R7 g3 l% ?; P" J. f. ^“没有这么多的大道理在里面……1 G# d& u3 `/ ?* D1 _6 X
这实际上和大家用的电脑键盘上字母键的排列是一回事,不过是当初的一个商业噱头。到现在不过是既成事实,没有必要去改变罢了。”1 h* Z* Z- J4 e. F( s: q$ v