These include coal mining , quarrying , oil drilling , and the injection of wastewater into the ground .

这些活动包括采煤、采石、石油钻探和向地下注入废水。

A quarrying operation in reading , pa. , is believed by some seismologists to have set off a series of smaller quakes in that region .

还有一些人相信宾夕法尼亚州雷丁的采石作业引发了该地区一系列规模较小的地震。

A worker who excavates for foundations of buildings or for quarrying .

为了建筑物的根基或采石而开凿挖掘的工人。

Article 23 land reclamation at the expense of deforestation , rock quarrying , sand quarrying , soil extracting and other activities at the expense of deforestation shall be forbidden .

第二十三条禁止毁林开垦和毁林采石、采砂、采土以及其他毁林行为。

Article 20 the local people 's governments at various levels shall take measures to strengthen the control over such production activities as mining , earth-fetching , sand-digging and quarrying , so as to prevent soil erosion .

第二十条各级地方人民政府应当采取措施，加强对采矿、取土、挖砂、采石等生产活动的管理，防止水土流失。