4 . coeffcient of static friction is the same to coefficient of dynamic friction , can dispel low speed creeping , ensured the working precision 4靜動磨擦系數(shù)相近,能消除低速度的爬行,從而保證機(jī)械的工作精度。
Paper and board . paper , board , corrugated board and their components . determination of the coefficient of static friction and ' estimation of the coefficient of dynamic friction dynamometer method 紙和紙板.紙張紙板和瓦楞紙板及其組成部分.靜摩擦系數(shù)測定和動摩擦系數(shù)估算測力計法