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- The intermittent transportation process can be adopted for the low-throughput rate pipeline which the pour depressant is added and the forward and back pumping is also needed. 对于添加降凝剂后还需进行正反输运行的低输量管道,可以采用间歇输油工艺,通过对中洛线间歇输送的试验分析,总结了间歇运行的优点和应该注意的问题。
- ZJ type Roots vacuum pump and the backing pump i.e two stage water ring vacuum pump. 它不仅可以用来抽除一般气体,还可以抽吸含有水分及少量灰尘的气体。
- JZJX type Roots-Vane vacuum system consists of the major pump i.e ZJ type Roots vacumm pump and the backing pump i.e. vane vacuum pump. JZJX系列罗茨-旋片机组是由ZJ型罗茨真空泵(主抽泵)和旋片式真空泵(前级泵)组成的。
- Forward Transportation and Reverse Pumping Experiment on PPD-benefited Oil in RenJing Oil Pipeline 任京输油管道加降凝剂正反输现场试验
- Our army suffered a slight reverse. 我们的部队受到轻微的挫败。
- The series H pump can be a backing pump when combined with another high vacuum smelting, vacuum drying, vacuum impregnate and high vacuum simulation testing, ect. 广泛地应用于真空冶炼、真空干燥、真空浸渍、高真空模拟试验以及其他真空作业上。
- Blood was pumping out of his back like a fountain. 血像泉水般地从他的背部涌出。
- The 50p coin has a crowned lion on its reverse. 50便士硬币反面的图案是个戴皇冠的狮子。
- I twisted my head round to reverse the car. 我扭过头去把汽车向後倒。
- Study on the Forward Transportation and Reverse Pumping Operation Law on PPD-benefited Oil in RenJing Oil Pipeline 任京输油管道加降凝剂正反输运行规律研究
- The car has four forward gear and one reverse gear. 那汽车有四个前进挡和一个倒挡。
- A march back or in a reverse direction. 反方向行进,向后转行进向后行进或向反方向行进。
- Blood is pumping out of his belly like a fountain. 血像喷泉似地从他的腹部涌出。
- The reverse of the coin was stamped with an eagle. 硬币的反面压印的是一只鹰。
- She then looked at the reverse side of the coin. 接着她看了看钱币的反面。
- Blood was pumping out of his belly like a fountain. 血像喷泉似地从他的腹部涌出。
- Children's shoes aren't cheap quite the reverse. 儿童的鞋并不便宜--反而更贵。
- Her heart was pumping very fast. 她的心脏跳得很快。
- Used either solely as Rough Pumps, or in combination with other high vacuum pumps as Backing Pumps. 可单独作低真空泵用,也可与其它高真空泵组合作前级泵用。
- He was pumping away the whole day. 他整天忙着用唧筒抽水。