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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. 對于添加降凝劑后還需進(jìn)行正反輸運行的低輸量管道,可以采用間歇輸油工藝,通過(guò)對中洛線(xiàn)間歇輸送的試驗分析,總結了間歇運行的優(yōu)點(diǎn)和應該注意的問(wèn)題。
- ZJ type Roots vacuum pump and the backing pump i.e two stage water ring vacuum pump. 它不僅可以用來(lái)抽除一般氣體，還可以抽吸含有水分及少量灰塵的氣體。
- 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系列羅茨-旋片機組是由ZJ型羅茨真空泵（主抽泵）和旋片式真空泵（前級泵）組成的。
- Forward Transportation and Reverse Pumping Experiment on PPD-benefited Oil in RenJing Oil Pipeline 任京輸油管道加降凝劑正反輸現場(chǎng)試驗
- Our army suffered a slight reverse. 我們的部隊受到輕微的挫敗。
- 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. 廣泛地應用于真空冶煉、真空干燥、真空浸漬、高真空模擬試驗以及其他真空作業(yè)上。
- Blood was pumping out of his back like a fountain. 血像泉水般地從他的背部涌出。
- The 50p coin has a crowned lion on its reverse. 50便士硬幣反面的圖案是個(gè)戴皇冠的獅子。
- I twisted my head round to reverse the car. 我扭過(guò)頭去把汽車(chē)向後倒。
- Study on the Forward Transportation and Reverse Pumping Operation Law on PPD-benefited Oil in RenJing Oil Pipeline 任京輸油管道加降凝劑正反輸運行規律研究
- The car has four forward gear and one reverse gear. 那汽車(chē)有四個(gè)前進(jìn)擋和一個(gè)倒擋。
- A march back or in a reverse direction. 反方向行進(jìn),向后轉行進(jìn)向后行進(jìn)或向反方向行進(jìn)。
- Blood is pumping out of his belly like a fountain. 血像噴泉似地從他的腹部涌出。
- The reverse of the coin was stamped with an eagle. 硬幣的反面壓印的是一只鷹。
- She then looked at the reverse side of the coin. 接著(zhù)她看了看錢(qián)幣的反面。
- Blood was pumping out of his belly like a fountain. 血像噴泉似地從他的腹部涌出。
- Children's shoes aren't cheap quite the reverse. 兒童的鞋并不便宜--反而更貴。
- Her heart was pumping very fast. 她的心臟跳得很快。
- Used either solely as Rough Pumps, or in combination with other high vacuum pumps as Backing Pumps. 可單獨作低真空泵用,也可與其它高真空泵組合作前級泵用。
- He was pumping away the whole day. 他整天忙著(zhù)用唧筒抽水。
