covering wheel meaning in Chinese

覆土轮

Methods of test for paints - determination of resistance to abrasion rotating abrasive - paper - covered wheel
涂料试验方法.第e14部分:耐磨性测定
Testing methods for paints - part 5 : mechanical property of film - section 8 : abrasion resistance rotating abrasive - paper - covered wheel method
涂料试验方法:第5部分:膜的机械性能.第8节:耐磨性
Paints and varnishes - determination of resistance to abrasion - part 1 : rotating abrasive - paper - covered wheel method iso 7784 - 1 : 1997 ; german version en iso 7784 - 1 : 2006
色漆和清漆.耐磨性的测定.第1部分:旋转用砂纸包裹的转