Just do like a mason does.

来源: Happyyl 于 2012-12-05 14:25:38 [] [旧帖] [给我悄悄话] 阅读数 : (135 bytes)
回答: 回复：有没有好办法？ 由 jinjing 于 2012-11-22 16:44:25

You cut them if size is too large.  You fill the gobs with cement when the size if just slightly smaller than the required.

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