Students of human migration speak of "push" and "pull" factors, which influence an individual's decision to move from one place to another.
研究人类迁移的学生们谈到“推”和“拉”因素，这些因素会影响个体是否会从一个地方迁移到另一个地方。
The valve can not bear the push, pull and torsion action generated by the heat-expansion and cold-contraction of pipe or other reason.
盲板阀不得承受管道热胀冷缩或其他原因发生的外力对其产生推拉、扭曲作用。
ContactSyncService.sync USES a push-pull approach to synchronization.
sync使用推-拉方法进行同步。
Push-Pull is emotionally Pushing a woman away from you and then emotionally Pulling her back in. Each Push creates an emotional space for each Pull.
推挽式是一种情感上的方法，先让她远离你，然后在再把她拉回来。每次把她推出去就是为把她拉回来在情感上创造了空间。
Push-Pull is emotionally Pushing a woman away from you and then emotionally Pulling her back in.
推挽式是一种情感上的方法，先让她远离你，然后在再把她拉回来。
Most airlines admit they need GDS distribution, so the push-pull will continue.
大部分航空公司承认，他们需要GDS做分销，因此这场拉锯战将继续。
We are using the push/pull function from the paint deformation folder to create our snow structure where necessary.
我们使用绘图变形文件夹中的推/拉功能在我们需要设置雪景处设置雪的结构。
While all modern op amps have push-pull OUTPUT stages of some sort, many are still asymmetrical, and have a greater slew rate in one direction than the other.
现代运算放大器有某种方式的推挽式的输出级，许多也是不对称的，并且某一方向的压摆率有比其它方向的有更大的倾向。
The output transformer USES the original idea presented by McIntosh, that is, the transformer is designed for a conventional push-pull output and the primary windings are halved.
改良输出变压器还是基于麦氏的原始想法，也就是说，变压器还是按照传统的推挽输出设计，而且初级绕组具备中央抽头。
These methods all can be used to solve the magnetic aberration hi the conventional push-pull converter.
这两种方式均可以解决传统推挽直流变换器存在的偏磁问题。
AIM: to evaluate cardiovascular responses to push pull maneuver and the mechanisms of the push pull effect.
目的：评价推拉动作的心血管反应性及推拉效应的发生机制。
A study has been done over the small crack growth rate for kinds of carbon steels under push pull and rotating bending.
对多种碳素钢在拉伸压缩和旋转弯曲负载下的微小裂纹扩展速率进行了研究。
The fixed device of the push pull installation isolation newly designed is introduced.
并对新设计的推拉式设备隔震固定装置作介绍。
An artistic directing students, he can learn skills will scan in heart, transformational push-pull to master everything, but finally decided he had what is the thickness of the film?
一个文艺编导的学生，他可以将拍片技能学得烂熟于心，推拉摇移样样精通，可是最后是什么决定他拍得片子的厚度？
Designers used large beech color of push-pull sliding door, and with a metal grid to use the door.
设计师使用了大面积的榉木色门板的推拉滑动门，并配合了金属网格的门板使用。
Safety signs for exits, escape routes, no smoking and fire fighting equipment, push-pull signs on doors etc., should be prominently and optimally displayed for awareness and to improve safety.
用来表示出口、撤离路线、禁止吸烟、灭火设备、大门推拉标志等事项的安全标志应在最显著和最适宜的地方显示，以使更多的人察觉到，从而提高安全系数。
There are some intrinsic drawbacks in traditional push-pull converter, such as higher voltage stress and hard-switching of the switches, so the application area of the converter is limited.
传统的推挽变换器存在着一些固有的缺点，诸如开关管的电压应力高、难以实现软开关等，限制了它的应用范围。
Standard microphone. Capacitor or push-pull microphone can be specified.
标准扩音器。可指定电容器式或推拉式扩音器。
The output swing can be improved efficiently with push-pull class-AB output stage, thus high-drive capability with low power supply is obtained.
输出级采用推挽式AB类结构，能有效地提高输出电压的摆幅，从而得到电路在低电源电压下的高驱动能力。
The article describes the features, application areas and working principle of the push-pull type pickling line as well as rinsing after pickling.
本文对推拉式酸洗机组的特点、适用范围以及工作原理和酸洗后冲洗作了介绍。
A stable, reliable push-pull pulsed wire feeder and its working Principle are introduced. Effective factors of wire-feed stability is also analyzed in this paper.
本文介绍了一种送丝性能稳定、可靠的推拉脉动送丝机及其工作原理，分析了送丝稳定性的影响因素。
This circuit is not a push-pull arrangement and the EL only fluoresces during the time-period when the transistor is turned off.
该电路是不是推挽安排，只发出荧光的发光在时间周期，当晶体管处于关闭状态。
The main technical index of push-pull laser guided automated vehicle, the characteristics of construction and the function of each main system are introduced in the paper.
介绍了推挽式激光导引无人车设计的主要技术指标，结构特点及各主要系统的功能与作用。
Objective To study the effect of push pull maneuver on cerebral apoptosis and NO content of rats.
目的探讨推拉动作对大鼠脑组织中NO含量及细胞凋亡的影响。
Experiment results indicate that the intrinsic drawbacks of the traditional push-pull converter are overcome, and the application area of the new converter is widened.
实验表明，所提出的变换器克服了传统推挽变换器一些固有的缺点，扩大了其应用范围。
In recent years, continuous pickling line is replacing semi-continuous push-pull pickling line step by step.
近年来，全连续式酸沈线逐步取代了半连续推拉式酸洗线。
The article analyzes specifically dust control for effectiveness reasonableness and introduces calculating methods of blow and exhaust wind volume of Push pull ventilation device.
对其烟尘控制的有效性和合理性作了具体分析，同时介绍了吹吸式通风装置送、排风量的计算方法。
Objective To explore the degree of injury and phase of push-pull effect induced by different degrees of push-pull maneuver on hippocampus neurons in rats.
目的探讨不同强度的推拉动作所致的推拉效应对大鼠海马神经元损伤的程度和时相性。
Objective To explore the degree of injury and phase of push-pull effect induced by different degrees of push-pull maneuver on hippocampus neurons in rats.
目的探讨不同强度的推拉动作所致的推拉效应对大鼠海马神经元损伤的程度和时相性。
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