lubrication是什么意思？

Lubrication reduces noise and wear.润滑作用能减少噪音和磨损.We shall require more lubrication oil this month.这个月我们需要更多润滑油.Sludge can also clog oil passages and prevent normal engine lubrication.油泥还会阻塞油路,妨碍发动机的正常润滑工作....

lubrication的音标：lubrication的英式发音音标为：[ˌlu:brɪ'keɪʃn]lubrication的美式发音音标为：[ˌlubrɪ'keʃən]...

In land animals, saliva contains mucus, and provides lubrication for food in the alimentary canal.陆上动物的唾液内有粘液, 并对消化道内的食物起着润滑作用.In metal lubrication two distinct regions are recognized: boundary and hydrodynamic.在金属的润滑作用中...

pretext的复数形式为：pretexts...

v.（使）旋转( swivel的现在分词 )，在枢轴上转动，（把身子或脸等）转向另一方，转身...

A heavy stockade around the cabin protected the pioneer from attack.小屋周围的厚厚的栅栏保护拓荒者免受攻击。Sun Li is an explorer , a pioneer an expresser of the new territory of literature.孙犁是文学新地的发现者、抒写者、开拓者.Two members of the Young Pione...

lead time的音标：lead time的英式发音音标为：['li:d taɪm]lead time的美式发音音标为：[lid taɪm]...

“协商”的拼音为：xié shāng...

“瘾君子”的英语可以翻译为：drugster，dependent user (of drugs)，acidhead，druggy，hype...

stances的音标：...

n.联合图象专家组( JPEG的名词复数 )，一种压缩标准...

n.绊网，地雷拉发线...

The capsid together with the enclosed nucleic acid is the nucleocapsid.衣壳同包围它的核酸一起称为核衣壳.He recruited another nucleic acid chemist, a young Pakistani, Dr. Rao Sastri.他又找来一名核酸化学家, 叫作拉奥·萨斯特利的年轻的巴基斯坦人.To study the gastrointe...

During the hypotension , CVR and RVR showed a decline for 10—30 minutes.BP下降 时, CVR及RVR降低,可?持10—30分钟.CVR were worsen graduately with the severity of hypertension.随着高血压程度的加重,CVR值逐渐降低.HRV and cardiovascular reflex tests ( ...

n.昼盲症，夜盲症...

n.祝福，谢饭祷告，万物颂...

Superintendent Fairbairn was still clucking at the photographers, warning them he'd be speaking to their editor.费尔贝恩警长还在表达对摄影师们的不满，警告说他会和他们的主编谈谈。" You little fraud, " he said, clucking to the horse." 你这个小骗子, " 他揶揄地说...

...