Fortunately we have good river water which we can cart in from upstream while the drilling - inchbyinch - continues.
还好,在钻井一英寸一英寸向前推进时,还有水质很好的河水可用,我们用车从上游运水过来。
3
They worked with hand trowels, a plywood form for lining the shaft with concrete, inchbyinch, and a sturdy hand-built crank for lowering a man to the bottom and sending up buckets of sand.