基本解釋[經(jīng)濟(jì)學(xué)]人工打樁機(jī)詞組短語(yǔ)短語(yǔ)common pile driver hand pile -driver 人工打樁機(jī)hand pile-driver更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)人工打樁機(jī)