external crack是什么意思

网络释义

用法例句

Relations between changes of constitution stress field due to mining process and earth surface cracks;

模型半定量地给出了地表开裂的力学原因,并对地表裂缝的进一步发展作了预测。

The research on surface cracks in Weibei mining subsidence area and analysis of anti-deformation residence design;

渭北采动沉陷区地表裂缝规律及村镇抗变形民宅设计分析

In order to control the surface crack damage of huge thick collapsible loess caused by mining effectively,the distribution rule of stress-strain in top interface of the base rock and the relation of which and the surface crack were obtained using the probability integral method.

为了有效地进行采动巨厚湿陷性黄土地表裂缝损害的控制和治理,在对西部几个矿区开采地表裂缝破坏调查的基础上,应用概率积分法计算基岩顶界面的应力应变分布规律,分析其与地表裂缝的关系,研究开采引起黄土层地表裂缝产生的机理。

Aiming at the surface crack that happened in tunnel construction it analyses its reasons,and puts forward the corresponding management steps to supply reference to the related people.

结合贺家庄隧道施工具体情况,阐述了弧形导坑预留核心土七步流水作业法开挖黄土隧道施工工艺,针对隧道施工中出现的地表裂缝进行了原因分析,并提出了相应的处理措施以供有关人员参考。

Application of optical method to the measurement of concrete surface crack;

光测法在混凝土表面裂缝测量中的应用

Influence factors on surface crack of semi-rigid base course;

半刚性基层表面裂缝影响因素

Prevention and treatment of irregular ruptured slabs and surface cracks of airport runway;

机场道面混凝土不规则断板和表面裂缝的防治

This paper analyses on the reasons of surface cracking of commercial concrete, and puts forward some concrete measures for field control of surface cracking of commercial concrete.

分析了商品混凝土表面出现裂缝的原因 ,提出控制商品混凝土表面裂缝的具体措

The reflective cracking and the surface cracking in the semi-rigid pavement are common under the sudden temperature changed and continuous low temperature for its sharp contraction characters produced by the change of temperature and humidity.

由于半刚性材料的温缩性和干缩性，路表温度的骤然升降和持续低温，使得半刚性路面中广泛存在反射裂缝和表面裂缝。

On controlling and handling of loess tunnel surface cracks of Zheng-Xi transporting railway

郑西客专黄土隧道地表裂缝控制处理技术浅谈

Research of the floor surface crack control measures of large cross-section loess tunnel

大断面黄土隧道地表裂缝控制措施研究

(geology) of rock material; forced out while molten through cracks in the earth's surface.

（地质学）用于岩石材料；当融化穿过地表裂缝时猛烈喷出的。

Analysis of Surface Settlement Crack Distortion Law and Formation mechanism in No.2 Mining Area of Jinchuan Nickel Mine

金川二矿区地表裂缝沉降变化规律及形成机制分析

A deep, steep-sided opening in the earth's surface; an abyss or a gorge.

裂缝土地表面上深的、陡峭的缝隙；深渊或峡谷

A narrow chasm with steep cliff walls, cut into the earth by running water;a gorge.

峡谷带峭壁的狭窄裂缝，由流水切入地表；峡谷

Analysis on abnormal cracking cause in surface ground of Wannian Mine and prediction model amended

万年矿地表异常裂缝成因分析及预测模型修正

A fine crack in a surface or glaze.

（陶瓷器）表面的裂缝

fracture of roll

轧辊表面的裂缝(掉角)

The earthquake left a rent in the wall.

地震使墙上裂了一条缝。

Research on the parameter optimization of the preset crack's fracturing slot and ground test

预置裂缝压裂割缝参数优选及地面试验研究

a fissure in the earth's crust (or in the surface of some other planet) through which molten lava and gases erupt.

喷发熔化的火山岩和气体的地球外壳（或是其他行星的表面）的裂缝。

Molten rock that reaches the earth's surface through a volcano or fissure.

火山岩通过火山口或裂缝溢出地表的岩石融化物

A crack, crevice, or split.

裂缝裂隙、缺口或裂缝

Because the observation of interior crack is not always available, this paper laid emphasis on surface crack of segments.

由于管片内部裂缝观测难以实现，故重点研究了表面裂缝的影响。

The Analysis of Fatigue Fracture of Asphalt Pavements Base on Surface Cracking;

基于表面裂缝的沥青路面疲劳断裂分析

(geology) a fracture in the earth's crust with displacement of one side with respect to the other.

（地质学）地球外壳的裂缝且伴之以裂缝的一边相对于另一边的错位。

To produce a network of fine cracks in the surface or glaze of.

使(陶瓷器)的一表面产生裂缝.