Learn a word: allotrope (同素異形體)

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

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• 回複：Learn a word: allotrope (同素異形體) -suvescape- ♂ (98 bytes) () 10/08/2009 postreply 21:52:52

• 回複：回複：Learn a word: allotrope (同素異形體) -YuGong- ♂ (1011 bytes) () 10/08/2009 postreply 22:06:24

• 我經常要檢測piping裏頭的carbon含量.我的工作和這有關 -suvescape- ♂ (333 bytes) () 10/08/2009 postreply 22:13:58