friction facing

China to further expand opening up trade friction has become a major issue facing.

贸易摩擦已经成为我国进一步扩大对外开放所面临的重大问题.

Discussion on Test Method for Determining Friction and Wear Properties of Clutch and its Facing

离合器及其面片摩擦磨损性能测试方法探讨

Development and Application of Cermet Friction Facing on Clutch Disc in Heavy Duty Truck

金属陶瓷汽车离合器摩擦片的研制及应用

Temperature field thermography on friction facing of certain wear-resistant alloys

几种耐磨合金磨损温度场的热图

The term of tooth wear ( TW) is used to describe the loss of hard tooth tissue caused by friction between tooth occlusal facing or tooth facing and food during masticatory movement and non-masticatory movement under no occurrence of dental caries and external injury.

牙齿磨耗是指在没有龋齿及外伤情况下，牙齿在咀嚼运动和非咀嚼运动过程中，由于牙面与牙面间摩擦、牙面与食物间摩擦，牙齿硬组织的丧失。