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- Using liquid paraffin or mineral oil as base oil, the effect of DE film forming agent on the tribological properties of lubricating oil was studied on a pin-on-disk tester and a four ball tester. 以液体石蜡或二线油为基础油,在栓-盘式试验机和四球试验机上就DE成膜剂对润滑油摩擦学性能的影响进行了研究。
- Antimony dialkyldithiophosphates and antimony dialkyldithiocarbamates were synthesized as lubricant additives.Timken and four ball testers were used to evaluate their properties. 合成了二烷基二硫代磷酸锑和二烷基二硫代氨基甲酸锑两类有机锑化合物作为润滑油添加剂。
- TAPE INITIAL ADHESION ROLLING BALL TESTER 胶带初粘性滚球试验机
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- Keywords extreme pressure cutting oil;high activity;over base sulfosalt;four ball tester; 极压切削油;高活性;高碱值磺酸盐;四球机;
- four - ball tester 四球试验机
- The golfer lost four strokes trying to get the ball out of the sand trap. 那个高尔夫球手花了四杆去打那落入沙坑的球。
- It is clear to all of us that two plus two is four. 二加二等于四对我们大家都很清楚。
- He wove four plots together into a novel. 他把四条情节编成一部小说。
- We have tea at four o'clock in the afternoon. 我们在下午四点钟喝茶。
- The town boasts four swimming pools. 这座城镇以拥有四个游泳池而自豪。
- Our football team won by four goals to nil. 我们的足球队以四比零取胜。
- I was clean broke in less than four days. 不到四天我就一个钱也没有了。
- I'll look out for you at about four. 我4点钟左右找你。
- He showed us four case studies of disturbed girls. 他给我们看了4位精神失常姑娘的病历。
- My house is four miles distance from the sea. 我家离海四英里。
- Our team beat them hollow by four clear goals. 我们队以净胜4分彻底击败了他们。
- The leap year comes around once in four years. 每四年有一个闰年。
- The soldiers counted off from the left by four. 士兵们从左起四个一组大声报数。
- He wooed four girls before finally marrying one. 他在结婚之前曾向四个姑娘求过婚。
