A concrete contraction crack and preventive measures

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

Discussion of Plastic Contraction Crack and Fault and Construction control

塑性收缩裂缝和断板的探讨及施工控制

In order to solve the volume contraction after cement slurry curing and preclude cement plug fracture, a new oil well cement additive is developed and optimized.

为达到提高油水井打水泥塞施工有效率目的，采用在油水井水泥中加入添加剂来减少水泥浆稠化凝固后的体积收缩量及消除水泥塞裂缝。

The application has proved that the riser design of cast inserted die was simple and practical with use of volume contraction principle, and the productivity increased effectively.

实践证明，应用体收缩法设计模具钢镶块铸件的冒口工艺简单、实用，有效地提高了生产效率。

The activation energies for fruit peel, textile and board paper were lower, and their pyrolyses followed volume contraction mechanism.

而果皮、织物和纸板类的活化能较低，它们的热解符合体积缩小机理。

To the dense sand, the reversibility of part of dilatation is the main reason of the volume contraction.

密砂的卸载体缩是剪胀可恢复的宏观体现。

CONSTITUTIVE MODEL OF ROCK UNDER TRIAXIAL LOADING AND UNLOADING Research on Volume Contraction due to Triaxial Unloading in CD Test

岩石在三轴加卸荷过程中的一种本构模型研究排水三轴试验卸荷体缩现象的原因

While the confining stress is large, strain hardening, volume contraction and lateral intrusion become prevalent.

高侧向应力状态时应变硬化，体缩和侧向收缩。

Design of Insulated Riser of Cast Inserted Die Based on Principle of Volume Contraction of Freezing

基于体收缩原则的铸造模具镶块保温冒口设计研究

By using acoustic methods, this paper studied the isotonic and isometric contraction of biceps under load to reveal the characteristics of sound production.

作者用声学法研究肱二头肌在负荷下等长、等张收缩、揭示其发声规律。

Then we investigate two particular cooperative behaviors of cross bridges in muscle isotonic contraction ( in which the extern load F is constant):( 1) n 0 attached cross bridges work at the same tempo, the working process is not affected by the environment;

在此基础上，考察了横桥分子间的两种协作行为：（1）n0个处于接触状态的横桥分子同步的工作，其作功过程与外界影响无关；

By means of isotonic contraction, we studied the enhancing effects of atractylodes macrocephala on the smooth muscle of mice small intestine.

以等长收缩的形式观察并记录了不同浓度的自术对小鼠小肠平滑肌收缩功能的影响。结果表明白术能显著增强小肠平滑肌收缩幅度、收缩频率，能显著延长小肠平滑肌在缺氧情况下的收缩时间。

Objective To explore the effect of isotonic contraction exercise on cardiac function in patients with AMI.

目的研究分级等长收缩运动对急性心肌梗死（AMI）患者的心功能影响。

Methods Isotonic contraction of vessel smooth muscle was recorded.

方法应用血管平滑肌等张收缩的方法。

In this paper, a formula is proposed to evaluate the contraction stress and strain due to temperature variation in buildings of mixed structure based on the relationship of consistent functioning and mutual constraint among structural components.

根据混合结构房屋构件之间的相互约束以及协同工作的关系，文章提出了温度收缩应力和变形的近似计算方法。

The construction process data and operational monitoring data are separately analyzed, and the contraction of the strain and creep model based on gray theory are obtained.

对施工过程中的监测数据和运营后的监测数据分别进行分析。基于灰色理论，得到应变的收缩徐变模型。

Evaluation of the paradoxical sphincter contraction by a strain/ squeeze index in constipated patients

使用strain/squeeze指数评估便秘患者的肛门括约肌异常收缩

This paper introduces the contraction rule method in solving the Goldbach-Guye's conjecture, and explains the features and attentions when adopting the contraction rule method.

介绍了求解哥德巴赫-古叶猜想解答的缩尺法，并说明了采用缩尺法的某些特点和注意事项。

The frequency and strength of uterine contraction were enhanced.

对子宫收缩频率、持续时间及强度有加强作用。

Mechanism of Acupuncture in Promoting Uterine Contraction in Late Pregnancy Rats

针刺对妊娠末期大鼠的促宫缩作用