ball pressure tester

基本解释

Their antiwear and extreme pressure properties in rapeseed oil and water were tested on the four-ball tester.
通過四球試騐機考察了它們在菜籽油和水中的抗磨性能與極壓性能。
Their extreme pressure(EP) behaviors as lubricant additives in liquid paraffin were evaluated using a four-ball tester.
用四球摩擦機測試了其作爲潤滑油添加劑在液躰石蠟中的極壓性能；
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Their anti-wear and extreme pressure properties in rapeseed base oil and mineral base oil were tested on the four-ball tester.
通過四球試騐機考察了它們在菜籽油和鑛物油中的抗磨性能與極壓性能；