surface crack的例句大全

External defects: undercut , overip , arc pit, gas cavity in surface, crack in surface.

外部缺陷: 咬边 、 焊瘤 、 弧坑 、 表面气孔 、 表面裂纹.

The surface gloss had begun to crack.

表面的光彩已经开始衰退了.

In contact with a hot surface, naphtha petroleum fractions crack to produce ethylene and propylene.

石脑油馏份与一个热表面接角,就裂解而得到乙烯和丙烯.

Quenching crack deep and long, straight fracture , fracture surface without oxide color.

淬火裂纹深而细长, 断口平直,破断面无氧化色.

The surface of delamination crack is of cleavage fracture appearance with large cleavage face.

分层裂纹表面为解理形貌，解理面较大。

The Polyester Fiber Prevents the Concrete Road Surface Temperature Crack and the Desiccation Fissure Effectively

聚酯纤维有效防止混凝土道面温度裂缝和干缩裂缝

There are two kinds of the medium frequency quenching crack for the crankshaft, namely, cracks in both oil hole and neck surface.

曲轴中频淬火裂纹有油孔裂纹和轴颈表面裂纹两种。

The mechanical property of N80 steel has increased obviously after adding corrosion inhibitor, where the ductility of N80 steel increased, and crack fissure of fracture surface decrease.

添加缓蚀剂后使N80试样的韧性有明显的增加，断口裂纹缝隙明显减小，力学性能有了明显的提高。

The main toughening mechanisms are metal bridging, cleavage vein in the fracture surface and crack shielding caused by dislocations.

金属相和位错导致的解理及位错对裂纹的屏蔽作用是复合陶瓷刀具材料的主要增韧机理。

The effect of the Crack on the Aerocrete Surface on Structure Performance

加气混凝土屋面板工艺裂缝对结构性能的影响

The text has analyzed the mechanism of contraction crack on the surface of ceramic. fibre.

分析了纤维收缩产生裂纹的机理.

A Brief Talk On Forepart Contraction Crack In Cement Concrete Road Surface

浅谈水泥混凝土路面早期收缩裂缝

In order to ensure solid motor with cracked grain to be successfully launched, the strain and stress concentration at the tips of crack should be released by shoveling slot on the crack of grain surface.

工程实际中通常采用于药柱表面裂纹处铲槽的方法来释放裂纹尖端的应力应变集中，以确保药柱含裂纹的固体发动机能正常点火发射。

Consequently, at the macroscopic crack branching velocity, the experimental fracture surface energy and the fracture surface roughness; have no single value in such materials.

因此，对这种材料在宏观裂纹分叉速度时，实验断裂表面能及断裂表面韧性没有单一值。

The results showed that capillary crack was formed from the surface cavity of billet in the process of high temperature heating-rolling and cavity and sliver defects were formed due to part melting of seating face of heavy rail.

分析结果表明：发纹缺陷是由方坯表面气孔经高温加热-轧制演变成的，掉肉和小裂口则是因重轨踏面局部融熔所造成的。

The Measures for Delaying the Map-cracking on the Surface of the Cast Roller

延缓铸轧辊面龟裂的措施

Cause analysis of radiator tube bundles' frost-crack for indirect air-cooled system with surface condenser

带表面式凝汽器间接空冷系统散热器循环水管束冻裂原因分析

It is found that intragranular structure is formed, and the tortuous routes of crack propagation and the branching, deflecting and bridging are also observed on the fracture surface.

通过对其断口的观察，发现形成了晶内型结构，并观察到了裂纹曲折的扩展路径以及裂纹的分叉、偏转、桥联，这些有助于材料强度和韧性提高的现象。

Part of the crack is cut by drill, the crack surface is dust-colour under naked eyes.

钻孔截取裂纹局部，肉眼可见裂纹表面呈暗褐色。

In the present work discovering cutter mark of machining become surface fatigue crack fountain.

在试验过程中发现,疲劳裂纹源多为机加工留在表面的刀痕、划痕.