往复

The wall sheathings are screwed on cold-formed steel studs, with 12mm gypsum board on one side and 9 mm oriented strand board on another side. Both static and cyclic load tests are conducted for a same size specimen. The purpose is to find the effect on shear strength from different height-width ratio, and to get the shear resistance limit by static and cyclic loading.

同样尺寸的二个试件分别在顶端进行水平单调加载和水平方向低周往复加载抗剪试验一次，试验目的是测试墙体的不同高宽比对抗剪强度的影响以及墙体在单调加载及低周反复加载两种情况下的抗剪强度Pu并做出比较，从而对墙体构造及设计提出改进建议。

Since there is no moving package, there can be no normal selvages and it is usual for the projectile always to travel in the same direction when carrying the yarn rather than to reciprocate as in a normal loom.

由于纬纱卷装不运动，也就不能形成常规的布边。通常片梭携带纬纱总是沿一个方向飞行，而不是像有梭织机的梭子那样往复运动。

The main product comprises silp-valve vacuum pumps, root vacuum waterring vacuum pumps, series roary vance vacuum pumps and various kinds of vacuum pumps system,Our products are widely used in areas,covering metallurgy, chemical industry,medical and pharmaceutical appliction, light and textile industry, electrical industry, defence scientifice researches etc,.

我厂主要产品有：滑阀真空泵、罗茨真空泵、往复真空泵、水环真空泵、旋涡泵各类真空机组、及真空应用设备，与供氧设备，其也通用设备制造、加工、修理。真空浸渍我厂产品广泛应用于冶金、化工、医药、经纺、电子、国防、科研等部门。特别H-8B型泵，在原有基础上经过改进，获得了更高的真空度和使用寿命。

From the idealism of the spaces of corporate architecture, to the day to day realities of roadworks and advertising, the Xu Peng captures the briefest of moments, with the lightest of touches.

从理想主义的城市空间和建筑的相互融合，到真实的周日往复的街头工地和广告充斥的场景，许鹏抓住最简洁的瞬间，利用最强烈的暴光。

It is completed with automatic paper pile transporting, automatic wire stitching and automatic book folding.

全套设备还包括自动纸堆运输、自动缝合和自动往复折叠。

Is a piston reciprocating pump as an example to illustrate the working principle.

现以活塞式为例来说明往复泵工作原理。

Continuously reciprocating piston movement, the water pump and water pressure on the continuous process of alternating.

活塞不断往复运动，泵的吸水与压水过程就连续不断地交替进行。

This paper analyzed the relations between vibration and plunger wear of reciprocating pump , and studied the characteristics for the diagnosis of plunger wear.

分析了往复泵柱塞-缸套磨损振动诊断机理，研究了振动时域、频域特征。

NET and three dimensional CAD software SolidWorks2004, the special-purpose three plungers reciprocating pump CAD system collecting the design, the lectotype, the analysis and the plot as a body is developed in this paper.

NET和三维CAD软件SolidWorks2004开发出一套集设计、选型、分析及绘图为一体的专用三柱塞往复泵的CAD系统。

In order to optimize the spring of the reciprocating pump valve and establish the best spring factor matching, the unsteady opening-closing process of the poppet valve was simulated. The simulation based on computational fluid dynamics approach, and the dynamic-grid technology and User Defined Function was conducted to depict the law of motion of the poppet valve.

采用RNG k-ε湍流模型、动网格技术以及用户自定义程序，对往复泵泵阀的启闭过程进行了非定常数值仿真，得出了不同弹簧因素下、阀门从开启到关闭的过程中，阀芯的升程随时间的变化规律、阀的迟滞关闭时间以及阀芯落座的瞬时速度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。