abrasion GRE雅思

there were cuts and abrasions to the lips and jaw.

在嘴唇和巴上都有伤口和擦痕。

The bacteria get into humans through abrasions in the skin.

细菌可以通过擦伤处进入。

liner of feed downpipe in limestone transportation line should be high abrasion-proof liner, etc.

灰输送线上的料溜子内衬应尽高耐磨性内衬等。

At the same time a good adhesion and abrasion-proof, corrosion resistance and weatherable eqripjment.

同时有良好的附着力，并具备耐磨、耐蚀、耐候等特性。

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性能降,会导致发动机的油泵磨损。

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.

磨损和过度弯曲-以防止磨损和过度弯曲，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是影响研齿效果的重要因素。

2.The sealing material of the s tellite material quality,high temperature resistant,abrasion resistance,ballistic-and corrosion resistant,long life span.

钨铬钴合金材质的密封材料耐高温、耐磨损、耐冲蚀.寿命长。

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、冲刷与磨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。

Methods:Macrography was used to observe the morphology of the mesiobuccal root,the degree of abrasion,the morphology of the floor of pulp cavity, the number and type of apical foramen.

方法:肉眼观察近颊根外形,牙合面磨耗程度,髓室底形态,根尖孔数目及类型;游标卡尺测各项长度指标及根尖孔到牙根顶点的距离;

The flaw of Internal and external wire rope such as broken wire, corrosion, abrasion, change of Metallic cross-sectional Area, Transshape, wire skipping, loose strand etc.

钢丝绳的内外断丝,锈蚀,磨损,金属截面积变化,变形,跳丝,松股等缺陷

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，耐压强度高，高抗热震，耐侵蚀，耐冲刷，使用寿命长。

At the same time, excessive abrasion can reduce the vertical dimension in basifacial 1/3 and may bring some negative effects in aesthetics to the patients.

若全牙列重度磨耗，则导致面1／3垂直距离降低，影响面部美观，导致面形苍老，对患者心理造成负面影响；

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、磨损测定，研究了硼硫共渗对渗硼层组织和性能的影响。