V-grooved pulley 三角皮带轮...spirally grooved tube 螺纹沟槽管...grooved cam 有槽凸轮...grooved metal gasket 齿形垫片...grooved director 有槽导子...grooved guide 有槽导子...grooved probe 有沟探子...grooved roll 环槽滚子...three-grooved drill 三槽钻头...tongued and grooved flanges 密封法兰;舌槽法兰...grooved urethrotomy staff 尿道切开有槽探杆...grooved drum 有槽鼓轮...grooved expansion joint 沟槽胀接...grooved friction wheel 有槽磨擦轮...grooved tongue 沟舌,裂缝舌...ovally grooved seal face 椭圆槽密封面...spiral grooved tube 螺旋槽管...
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