masatsu no daibubun
Definitions:
摩擦 【まさつ】 friction
大部分 【だいぶぶん】 most part; greater part; majority
Translations:
× the majority of friction
① the most dominant source of valve train friction
② the dominant source of frictional loss
③ dominant source of friction
Corresponding sources:
① www.dtic.mil
② IUTAM Symposium on Elastohydrodynamics and Micro-elastohydrodynamics
③ A Study on the Ball Screw Friction Torque - PDF

Japanese-English Glossary for Engineers
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