基本解释[經濟學]鏟鬭控制閥词组短语短語bucket main control valve 鏟鬭主控制閥backhoe bucket control valve 反鏟鬭控制閥multipurpose bucket control valve 多用途鏟鬭控制閥bucket control valve component 鏟鬭控制閥部件bucket control valve spool 鏟鬭控制閥滑閥bucket control valve更多词组专业释义經濟學鏟鬭控制閥