The weight that drops in a piledriver or steam hammer.
撞键打舂机或汽棰内落下的重物。
2
His mind may turn to the stock market, or he may become fascinated by the operation of a piledriver on his way to work.
他的心转到股票市场,或者他会变得让人着迷的操作的一桩在他的工作方式。
3
The construction of static pressure is to press the pile into the soil with reaction force provided by the static piledriver weight, and balance weight on the rack.