abrasion 雅思GRE

Lubrification degradation of low sulfur diesel oil causes oil pump abrasion of engine.

由于低硫低芳烃柴油的润滑能,导致发动机的油泵损。

The bacteria get into humans through abrasions in the skin.

细菌可以通过擦伤处进入人体。

Diamonds have extreme resistance to abrasion.

钻石极抗损。

It is vibrating caulking forming by good quality binder.Good thermal conductivity,high compressive resistance,high anti-heat shocking ,unattackable,abrasion resistance,long service life.

采用优质结合剂，经振动密实成型，热导率好，压强度高，高抗热震，侵蚀，冲刷，使用寿命长。

By means of analysis, hardness test, abrasion test, this paper studies the effect of boron-sulphurizing on microstructure and properties of boronized layer.

通过金相分析、硬度测试、损测定，研究了硼硫共渗对渗硼层组织和能的影响。

Distorsion,corrosion,erosion and abrasion mechanisms,concerning the faulty section,of the boiler s secondary superheater were studied by on-site measurements and by samples,cut from the tubes.

分别采取现场实测和割管取样2种方法对锅炉二次过热器的变形、腐蚀、冲刷与损等主要失效机理进行了分析,并由此得出预防管子失效的对策。

Abrasion and Overbending Concerns - To prevent abrasion and overbending, a metal hose can be used as a protective cover over wires or even other hoses.

损和过度弯曲-以防止损和过度弯曲，金属软管可以作为电线防护罩甚至掩护其他软管。

The important factors which affect the gear abrasion are the design of machine tool's spiale system and the selecting of main process parameters in the course of the gear abrasion.

研齿过程中机床主轴系统的设计以及主要工艺参数的选择是影响研齿效果的重要因素。