词汇	switch operating gear
释义	switch operating gear 道岔操纵装置
随便看	cost of children rs mortality cost of children's mortality cost of circulation cost of civil engineering works Cost of Civilization cost of clean air Cost of Cleaning Pollutants from Ships cost of clearing cost of clerical labor cost of coal cost of collection cost of commodity circulation cost of common services cost of communication cost of comparable products cost of compensation cost of completed work cost of compliance cost of constitution building cost ofconstitution implementation cost of constitution maintaining cost of construction cost of construction and equipment cost of construction and repairing cost of construction materials