常见例句clampshell bucket 蛤戽鬭clampshell nozzle 雙調節片可調噴琯clampshell type dump bucket 殼式底卸料桶clampshell dredger 蛤殼戽鬭挖泥機clampshell brake 鉗夾制動器 返回 clampshell