Site ground work的意思|示意

The people I watched hurrying to work past the construction site at Ground Zero early yesterday morning were surely not thinking about buildings collapsing as a result of terrorist attack.

我观察到，昨天清晨人们匆匆走过归零地(译注：Ground Zero，即世贸遗址)建筑工地时，那些人肯定不再想到这些建筑物的倒塌是由恐怖袭击造成的。

Apply to be using on open and no power site, such as the Plaza, Highway, workshops and other large-scale drilling operations on the ground, not fixed, mobile convenience, continuous work.

适用于开阔且无电源的场地，如广场、高速公路、大型车间等的地面钻孔作业，不需固定，移动方便，可连续工作。