Learn a word: allotrope (同素异形体)

Any of several crystalline forms of a chemical element. Charcoal, graphite, and diamond are all allotropes of carbon.

所有跟帖： 

• 回复：Learn a word: allotrope (同素异形体) -suvescape- ♂ (98 bytes) () 10/08/2009 postreply 21:52:52

• 回复：回复：Learn a word: allotrope (同素异形体) -YuGong- ♂ (1011 bytes) () 10/08/2009 postreply 22:06:24

• 我经常要检测piping里头的carbon含量.我的工作和这有关 -suvescape- ♂ (333 bytes) () 10/08/2009 postreply 22:13:58