中杆

The new method to determine the parameter is developed using the relationship between the incident wave and the reflecting wave on the pile top under transient impact.

1引言在基桩低应变完整性检测中，通常把桩土相互作用简化为一维波动问题，桩被视为一维杆件。

Injector fuel supply or pressure is not enough, atomization bad, drip, etc.; plunger rod adjustable arm or teeth protruding ears from the governor lever fork slot prolapse in non-oil position; fuel pump plunger and barrel assembly seriously wear and tear, oil pressure is too low, the oil valve wear serious Mifengbuyan; washer crack and deformation, a broken valve spring, injector wear and tear stuck in the closed position.

喷油器不供油或压力不足、雾化不良、滴油等；柱塞调节臂或齿杆凸耳从调速杠杆叉槽中脱出处于不供油位置；喷油泵柱塞偶件严重磨损，供油压力太低，出油阀磨损严重，密封不严；垫圈开裂变形，出油阀弹簧折断，喷油器磨损卡死在关闭位置。

In order to protect the valve stem, this torque should always be limited by either: a the torque switch in

为了保护阀门阀杆，这种扭矩应该总是通过下列方法中的一种进行限制：a 电

The threads on the lower valve stem are in the wetted gas stream.

下阀杆上的螺纹是处在潮湿气流中的。

Multi-channel valve and then immersed in oil, 20-30mm, open the air valve, the valve rod placed in two extreme positions.

再将多路换向阀浸入油中20-30mm，打开空气阀门，将换向阀杆置于两个极限位置。

This cone of concentricity and face runout vertical degree and CNC machine tools with a common location in a process out of the valve stem is easier to FILTER SERIES ensure design accuracy, while reducing the processing cost.

这样锥面的同轴度和端面的垂直度和跳动度用普通数控机床可以在一次定位中加工出来，阀杆的设计精度就比较容易保证，同时降低了加工成本。

The working principle is: compressed air into the oil mist from the input device, the vast majority of the output by the competent Road, a small part of the airflow into a pole on the positive direction of the airflow holes a, through the valve into the oil cup 5 c in the upper chamber, so that pressure on the oil surface.

其工作原理是：压缩空气从输入口进入油雾器后，绝大部分经主管道输出，一小部分气流进入立杆1上正对气流方向的小孔a，经截止阀进入储油杯5的上腔c中，使油面受压。

The conveyed medium can't be leaked outside. Thus it will not cause the environmental pollution and human body safety dangerous while exhausting the toxin and flammable or corrosive medium. 5、No electricity. It's safe and reliable while using in the flammable and explore places. 6、It can be soaked in medium. 7、It's convenient to use and reliable to work. Only open or close the gas valve body while starting or stopping. Even if no medium operation or pausing suddenly for long time because of accident matters, the pump will not be damaged caused by this. Once over-loading, the pump will automatically stop and possesses the self-protection function. When the load recovers normally, it also can start automation. 8、Simple structure and less wearing parts. This pump is simple in structure, installation and maintenance. The medium conveyed by the pump will not touch the matched pneumatic valve and coupling lever etc. not like other kinds pumps, the performance will drop down gradually because of the damages of rotor, gear and vane etc. 9、It can transmit the adhesive liquid (the viscosity is below 10000centipoise) 10、 This pump needn't the oil lubricant. Even if idling, it has any influence to the pump. This is a characteristic of this pump.

所以抽送有毒、易挥发或腐蚀性介质时，不会造成环境污染和危害人身安全； 5、不必用电，在易燃、易爆场所使用安全可靠 6、可以浸没在介质中工作 7、使用方便、工作可靠、开停只需简单地打开和关闭气体阀门，即使由于意外情况而长时间无介质运行或突然停机，泵也不会因此而损坏，一旦超负荷，泵会自动地停机，具有自我保护性能，当负荷恢复正常后，又能自动启动运行； 8、结构简单、易损件少，该泵结构简单，安装、维修方便，泵输送的介质不会接触到配气阀，联杆等运动部件，不像其他类型的泵因转子、活塞、齿轮、叶片等部件的磨损而使性能逐步下降； 9、可输送较粘的液体（粘度在1万博以下）； 10、本泵无须用油润滑，即使空转，对泵也无任何影响，这是该泵一大特点

Combined with water and then covered with fire stew, and pour out of steam, with a kitchen knife into filaments, bit by bit into the cage, and then pickled lumps of pressed wood, put it step by step, after the full release Sorghum followed by pole size of the cut-off into the mouth urn-shaped section, I urn on the top, coupled with a "pebble" pressed, the urn will be placed in the shade, add water daily, so that the leaves ferment inside the urn after the juice is leaking "Red Water" spillover.

然后再加水上盖用火焖，蒸熟后倒出来，用菜刀切成细丝，一点一点地放进笼中，再用木制的腌菜疙瘩压紧，一层一层放置，放足后用高粱杆跟着瓮口大小截成段状，放在瓮口，上面再加一块&鹅卵石&压紧，将瓮置于阴凉处，逐日加清水，使瓮内菜叶发酵后渗出原汁即&红水&外溢。

In many reasons of causing cracks, only a few studies are reported about the influence of concrete shrinkage and creep on cracks for its computational complexity. If any, most calculations are only based on the two-dimensioned finite element model. So it's significant that how to analyze the spatial effect of concrete shrinkage and creep by utilizing large software.

在众多的开裂原因中，混凝土收缩徐变的影响，由于计算的复杂性，这方面的研究报道很少，而且大部分的计算也只是基于二维杆系有限元模型，因而如何利用大型软件进行考虑混凝土收缩徐变的空间效应分析，十分有意义。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐