digging height 中文意思是什麼
digging height
解釋
採掘高度-
The main danger in high - rise construction lies in the deep depth of foundation digging, the great height of work place, the much crossover work, the long time for a project
高層建築施工存在危險的主要方面有:基礎開挖深度深、作業高度高、交叉作業多、施工工期長。 -
Digging overall height floor coal at one times at about 3. 0m seam face with single hydraulic prop
左右煤層採用單體液壓支柱支護臥底煤一次采全高
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