查询词典 backflow

To avoid this discharge, install a spring-loaded rubber seated check valve ahead of the backflow assembly to " lock-in " the downstream pressure.

为了避免这类排放，要在防回流阀总成前安装一个弹簧负载橡胶阀座止回阀来"锁定"下游压力。

Taiwanese tourists visiting Alaska in 2008 is over one time the numbers of the tourists in 2007 because China Airlines launches the reasonable-priced travel package. Kuo General represented that the best seasons to visit Alaska are summer and winter. More than 3,000 Taiwanese tourists go to see the glacier, wild animals, and salmon backflow in Alaska every year. Also, the northern lights could be seen from October to March.

华航经济实惠的旅程，受到许多想游阿拉斯加台湾游客的喜爱，自2007到2008年台湾到阿拉斯加的背包客更是成长一倍之多，郭倩仪经理表示，夏季与冬季是游赏阿拉斯加最佳季节，台湾游客每年有三千多人搭乘邮轮游赏阿拉斯加的冰河、野生动物、鲑鱼回流，还可目睹大灰熊抓鲑鱼的生态景观；冬天十到三月是欣赏北极光最佳的时间。

Some even with spray nozzle to the impact of backflow mixing effect, water medicine without sufficient agitate immediately spray.

有的甚至用喷雾器的喷嘴回流冲击以达到搅拌的效果，水药没有充分搅匀就立即喷雾。

Axial - flow impeller compressor can be used also as a highly swirling strong swirl generator, using its strong centrifugal field and large tangential velosity component, fully utilining the high flame propagation speed in swirling flow and the strong backflow, to organize swirl combustion .

本文将轴流式叶轮压气机兼做高漩数强漩流发生器，利用其强离心力场大切向分速，充分发挥漩流下高火焰传播速度和强回流特点，组织起漩流燃烧。

A triple purpose product featuring a toilet tank ball cock fill valve, anti-siphon backflow preventer, and a thermal expansion relief valve.

一种三用产品，具有马桶水箱浮球注水阀，反虹吸防回流阀，和热膨胀安全阀。

By use of 3-D ultrasonic doppler velocimeter,the turbulence characteristics of water flow in the spur dike head and backflow region are observed and analyzed systematically.

利用三维超声学多普勒流速仪对丁坝坝头附近水流和回流区水流的紊动特性进行了系统的观测和分析，得到了丁坝坝头和回流区的水流特性及紊动动能的分布规律。

Winterization of backflow preventers.

G。 防回流阀的过冬处理。

150HP-300HP screw air compressor rotor is the German GHH-RAND joint shaft type unit,adopts the third generation asymmetrical dentate 5:6 rotors,The major axis is more reasonable than the choice, the tangent speed of rotors is only 30-36m/s, is far lower than that———60m/s of common air compressors, it keeps 0.003INCH between rotors that will not abrase forever, the space between teeth dropping variance is small, so the backflow loses is slight, Enhances10-12% kf the efficiency compared to the 4:6 dentate, save power 20%, adopts the Swden SKF bearing.

150HP-300HP）螺杆机转子为德国GHH-RAND联轴式机组，采用第三代非对称齿型为5：6的转子，长径比选择合理，其转子的切线速度仅为30'36m/s，远低于一般空压机60m/s 的切线速度，转子之间保持0.003INCH间隙永不磨损，齿间落差小，故回流损失小，比4：6齿型提高效率10-12%，省电20%，采用瑞典SKF轴承，极大延长了主机的寿命。

Br/br/Adopts the GHH-RAND remarkable mainfrane br/(150HP-300HP) screw air compressor rotor is the German GHH-RAND joint shaft type unit,adopts the third generation asymmetrical dentate 5:6 rotors,The major axis is more reasonable than the choice, the tangent speed of rotors is only 30-36m/s, is far lower than that60m/s of common air compressors, it keeps 0.003INCH between rotors that will not abrase forever, the space between teeth dropping variance is small, so the backflow loses is slight, Enhances10-12 kf the efficiency compared to the 4:6 dentate, save power 20, adopts the Swden SKF bearing.

采用GHH-RAND卓越主机br/（150HP-300HP）螺杆机转子为德国GHH-RAND联轴式机组，采用第三代非对称齿型为5：6的转子，长径比选择合理，其转子的切线速度仅为3036m/s，远低于一般空压机60m/s 的切线速度，转子之间保持0.003INCH间隙永不磨损，齿间落差小，故回流损失小，比4：6齿型提高效率10-12，省电20，采用瑞典SKF轴承，极大延长了主机的寿命。

Autogenetic heat fracturing technique, which replaces fracturing pad fluid with chemicals in order to increase the backflow volume of fracturing fluid and the oil well productivity, is a technique used for remaking the low permeability reservoirs.

自生热压裂技术是应用化学药剂代替压裂前置液以提高压裂返排率和油井产能的低渗透储层压裂改造技术。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。