基本解釋[機(jī)械工程]履帶式開土機(jī)英漢例句雙語(yǔ)例句The jaws of the bucket opened; the bulldozer retreated on its caterpillar treads and almost flipped over as it was suddenly lightened of its load.鏟車上下頜張開,踩著履帶后退。它是如此輕快的后退著好像突然卸去了重負(fù)。caterpillar bulldozer更多例句專業(yè)釋義機(jī)械工程履帶式開土機(jī)