在斜坡上面,加装它的作用是挡住松土滑下来,等那些土沉下去以后,木板也就失去意义了,尤其后来我们加高了retaining wall,它就基本失去意义啦。
谢谢
在斜坡上面,加装它的作用是挡住松土滑下来,等那些土沉下去以后,木板也就失去意义了,尤其后来我们加高了retaining wall,它就基本失去意义啦。
谢谢
•
你兄妹两比劳模都能干.住的好象离我们不远.下次有重活就请你们帮忙了.
-Laozhong2-
♂
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12/20/2011 postreply
20:04:04
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好说,好说
-source4book.com-
♀
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12/20/2011 postreply
20:12:04
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