digging mass 中文意思是什麼
digging mass
解釋
掘削量-
With the rapid development of road and communication of city, the harm effect that the blast vibration induced by building mass undergrounds or tunnels and digging blast underground structures act on the ground environment, are increasingly remarkable
隨著道路、城市交通事業的迅速發展，大量地鐵、隧道的修築，淺埋地下結構的開挖爆破，由此而導致的爆破振動對地面設施，特別是對城市地面建築的危害效應越來越顯著。 -
With increase of soil hardn ess, digging duration in incisors significantly increased, but dried soil mass d ug out by the zokors in each bout reduced
隨著土壤硬度的增加，高原鼢鼠挖掘的時間及每次挖掘時持續的時間明顯增加，而每次的掘土量顯著減少。
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