查询词典 closed tube

Based on the 3D time-average Navier-Stokes equations, k-ε model was used to simulate the 3D turbulent flow field of whole flow passage in the Francis turbine including guide wickets, runner and draft tube. The energy performance and cavitation performance were predicted from the simulation results, and the calculated data were compared with the results of hydraulic turbine model experiment. The calculation of turbine efficiency and the measured efficiency was very closed and the maximal relative error was 0.9%.

该文基于Navier-Stokes方程和k-ε紊流模型，采用贴体坐标和交错网格系统，用SIMPLEC算法对一模型混流式水轮机引水元件、转轮和尾水管进行了联合计算与转轮单流道计算，数值模拟了水轮机各通流元件内部三维湍流流场，预测了水轮机的能量性能和空化性能，并与水轮机模型试验结果进行了对比。

Leahy through "ISO9001" and ISO14001 Certification manufactures and markets pultruded FRP pultruded FRP equipment and raw materials and a variety of cross-section of the grating, closed deck and fasting plate; glass steel platform, ladder and fence series , glass fiber reinforced plastic housing, incubator structure and Canopy: anti-corrosion fillers stent: stent tents; tool bar and tube; pultruded cable tray and stenting: cooling towers with structural profiles: communications base stations using Radome: Highway use the glare panels and guard rails and other clients such as the profiles.

雷易以通过&ISO9001&及ISO14001认证公司生产和销售玻璃钢拉挤设备及拉挤玻璃钢原材料和各种截面的格栅，封闭甲板和空腹板；玻璃钢平台，爬梯和围栏系列，玻璃钢房屋，保温箱结构和雨棚：防腐填料支架：帐篷支架；工具用棒材和管材；拉挤电缆桥架及支架：冷却塔用结构型材：通讯基站用天线罩：高速公路用的防眩板和护栏及其他客户的型材等。

When a sudden power failure or accident or normal pump stops when the pump stops, the valve inlet water velocity to reduce stress Agency, the valve plate also fall, when its velocity is zero (that is, inlet flow rate is zero Department), large valve plate because of its own gravity and rapidly turn off (time 3s ~ 5s), the majority of water to prevent backflow, when the valve before and after the formation of a water pressure, water stress, on the one hand through the small valve at the bottom of the three slot for pressure relief vent pressure. 4 water stress from the bypass tube into the cavity patch up the control room (this process for the suction pressure chamber that can effectively absorb the energy of water), when water stress on cavity than inferior vena cava, the pressure of water promote the diaphragm down mobile , the current cavity pressure of water being squeezed out all the small valve plate slowly drop back to standby status, the process time to ease closure adjustable (3s ~ 150s), then the valve has been fully closed, watertight.

当突然停电或事故停泵或正常停泵时，阀门进水口处压力水流速降低，大阀板也随之下降，当其流速为零时，大阀板由于自身重力而迅速关闭（时间3s～5s），可防止大部分水倒流，此时阀门前后形成一种水压差，压力水一方面通过小阀板底部的三条泄压槽进行泄压。4）压力水从旁通管进入膜片控制室上腔（此过程为吸压腔，能有效吸收一部分水能量），当上腔压力水大于下腔时，压力水推动膜片往下移动，当下腔压力水全部被挤出来时，小阀板缓缓下降，恢复到待机状态，此过程中缓闭时间可调节（3s～150s），届时阀板已全部关闭，滴水不漏。

Whether or not the installation of the discharge tube and discharge valve closed?

是否安装了排泄管并且排泄阀闭合？

It prevents juice from escaping, it diverts pulp efficiently toward a collector (13) or chute (150), it cooperates with a locking bar to keep the device safe and closed and it provides a platform for the feed tube.

它能避免汁溢出，有效地将果浆引向收集器(13)或废料槽(150)，它与锁条相配合以保持装置的安全和封闭状态，并且提供平台以安装进料管。

Head and tail of fold formed gradually to bend and further embryo body is "C", where has appeared in measurements neural tube closed, 1, 2, 3, to bow, the inner ear or one of the nest also hear clearly visible.

谢谢！！！！！第四周（发生第10-13期）头褶及尾褶的形成使胚体逐渐弯曲并进一步呈&C&形，神经管在体节出现处已闭合，第一、二、三、对腮弓相继出现，内耳的原基听窝也清晰可见。

In this paper, we analyzed the firing results in one 57H Gun with six different ignition al structure such as igniter in bottom, centre ignition tube closed by computer typing paper,and so on at conventional and low temperture condition.

密实火药床的点传火技术研究李锋，张振铎（华东工学院工程热物理系南京210014）关键词：点传火，燃烧，装药一、引宫火炮在不同环境下射击的弹道性能变化很大，一般线膛炮在十50&C—一40&C范围内，胜压变化40％以上，初速变化10％左右。

Each time we closed on whales, I would follow Professor Mate up onto the narrow grate of the pulpit deck. From its holster, which was a transparent plastic tube lashed to the pulpit rail, Mate withdrew the satellite-tag "applicator," a long-barreled, red-metal blunderbuss with a wooden rifle stock.

每次我们接近蓝鲸时，我都要和马特教授一起登上狭窄的船头，他从捆在护栏上的透明塑料筒中取出卫星标签发射枪，一支有木质步枪枪托的红铜长筒大口枪。

Focused on high-end seal of the development, design and manufacturing, product types include a variety of miscellaneous pieces of rubber, silicone tube, the door closed shaped strips, plastic products, hardware accessories and all types of electrical accessories such as remote control.

主要致力于高端密封件的开发、设计和制造，产品类型包括各种橡胶杂件、硅胶管条、门封异形胶条、塑料制品、五金电器配件及各类遥控器配件等。

The reasons of iron ions content overproof in grade Ⅱ desalting water system,such as variation water quality,contamination of regenerant , operation adjustment of pretreatment system and switching operation of bed were discussed.

对二级脱盐水系统中铁离子含量超标的原因，如来水水质发生波动、再生剂受到污染、预处理系统操作调整、床体运行切换等进行了论述。

You were hired to drum up new business, so go and do it.

公司雇你招徕新业务，你就做你的事好了。