基本解釋[經(jīng)濟(jì)學(xué)]鏟斗控制閥詞組短語(yǔ)短語(yǔ)bucket main control valve 鏟斗主控制閥backhoe bucket control valve 反鏟斗控制閥multipurpose bucket control valve 多用途鏟斗控制閥bucket control valve component 鏟斗控制閥部件bucket control valve spool 鏟斗控制閥滑閥bucket control valve更多詞組專業(yè)釋義經(jīng)濟(jì)學(xué)鏟斗控制閥