what is ch?

2007-01-22 9:17 pm
what is ch?

回答 (3)

2007-01-22 9:59 pm
c h 係章、節咁解,甚至在建築的测量行業于挖掘澻道時以红噴漆在挖好的隧道岩石上噴上ch15、ch20等字樣區分挖至的段數。
2007-01-22 9:26 pm
ch=chain (measurement)abbr.
2007-01-22 9:20 pm
ch--- Chapter


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