文章首句指出:“由于‘地震反射法’(sr)在勾划地球的地下层面这方面的准确性,该方法一直是探寻石油储备的最重要的工具。” 这是一个判断句,为结论。
Because of its accuracy in outlining the Earth's subsurface, the seismic-reflection method remains the most important tool in the search for petroleum reserves.
第二句话对解释进行总的说明:“在实地作业中,通过将一系列波列源,诸如小规模炸药爆炸,排列成一个网格模式,从而将地下层面标绘出来。” 接下来是“地震反射法”的详细过程。
In field practice, a subsurface is mapped by arranging a series of wave-train sources, such as small dynamite explosions, in a grid pattern…
现在,新空间在一层提供42台计算机工作站,地下层提供15个计算机工作站,而且每个座位都可以充电。
The new space now provides 42 computer workstations on the main level, 15 computer workstations on the lower level and access to power and data at every seat.
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