backflow
美 ['bækflo?] 
英 ['bækfl??]
- n.倒流；逆流；〔技〕回流；反流
- 網絡逆流回流；回流現象；逆流式
詞形變化
復數：backflows
英漢解釋
英英解釋
例句
Can be used after inflating, easy to carry. Inflated and deflated when the valve just pinch flat, a dedicated anti-backflow device gas.
充氣后即可使用，便于攜帶。充、放氣時僅需捏扁氣門嘴，專設氣體防倒流裝置。
The fuel tank can be used for storing fuel and can supply the fuel to an engine and collect the fuel backflow through a fuel pipeline.
它是可以貯存燃油，并通過燃油管路向發(fā)動機提供燃油和接收回流的燃油箱裝置。
Field test shows that this technique has obviously improved fracturing fluid backflow and management efficiency.
現場試驗表明，該技術明顯提高了壓裂液返排效果和管理效率。
A tanks-in-series model with backflow was used for mathematical modeling of the activated sludge wastewater treatment process.
一個坦克在系列模型以回流被使用了為數學模型被激活的爛泥廢水處理過程。
The hose connection backflow preventer shall consist of two independently operating check valves with an intermediate atmospheric vent.
這種軟管連接防回流閥應該包括兩個獨立運行的止回閥，這些止回閥帶中間大氣排氣口。
Backflow prevention should be present, along with a constant inert flow through the system.
由于存在通過系統(tǒng)的固定慣性氣流，要設有防止回流裝置。
Caution: Do not install a strainer ahead of the backflow preventer on seldom-used, emergency water lines (i. e. fire sprinkler lines).
警告：在平時很少用，只在緊急狀態(tài)下使用的管線（即消防噴淋管線）上的防回流閥前不要安裝過濾器。
a visual check of air gaps is sufficient , but mechanical backflow preventers have to be tested with properly calibrated gauge equipment.
盡管安裝氣隙足夠目視觀察，但是機械式防回流閥還是必須用適當量程的儀表設備進行檢測。
Designed to retrofit backflow protection onto fire hydrants used for temporary water service.
適用于用在臨時性水應用的消防栓上的防回流閥的更新改造。
At this point reverse flow may allow process products to backflow into the cylinder.
在這一點倒流會允許過程中的產品回流進鋼瓶。
Disc : is designed to close on its own weight to stop backflow from gaining sufficient velocity to create damaging shock .
閥瓣：靠自身重量關閉來阻止流體倒流形成足夠大的流速，從而產生破壞性沖擊。
Can be temporarily removed for replacement of the backflow preventer without the need for replacement of freeze protection services .
可以暫時性拆卸，在不需要更換防凍裝置的情況下，便于更換防回流閥。
The shutoff valve with the test cock is to be mounted on the inlet side of the backflow preventer.
帶測試旋塞的關閉閥應該安裝在防回流閥的進口側。
there was backflow in some region close to the wall of the reactor.
靠近反應器壁的有些區(qū)域存在回流現象。
The influence of secondary electron emission on efficiency and backflow can be improved through an elaborate electron optics design.
在研究二次電子特性及成像機理的基礎上，設計了二次電子成像系統(tǒng)。
First: to act as an automatic non-return valve by preventing a backflow of steam from the main steam header to the boiler.
首先，能過作為一個自動逆止閥，防止蒸汽從主蒸汽加熱器上倒流到鍋爐里。
Allows for the installation of the backflow preventer "at the service connection" in accordance with AWWA Standards.
允許在“維修連接處”安裝防回流閥，符合美國自來水廠協(xié)會的標準。
Results: The results show that 75% ethanol was the optimal solvent and backflow extraction with ethanol was the preferably method.
結果：研究表明，75%乙醇為絞股藍總皂甙提取的最佳溶劑，乙醇回流提取法為最優(yōu)方法。
A strainer should be installed ahead of the backflow preventer to protect all internal components from unnecessary fouling.
在防回流閥前應該安裝一個過濾器，以保護所有內部部件不會受到不必要的污染。
If debris in the water system continues to cause fouling, a strainer can be installed upstream of the backflow assembly.
如果水系統(tǒng)內的堆積物繼續(xù)產生污垢，則在回流閥總成的上游要安裝一個過濾器。
Strategically placed doors provide access to the backflow prevention assembly for testing and repair without removal of the entire unit .
永久性配置的門便于接近防回流閥總成進行檢測和不拆卸整個裝置的情況下進行維修。
in the chest caused by acidic backflow from the stomach irritating the esophagus; symptomatic of an ulcer or other disorder.
酸質自胃倒流而刺激食道引起的胸部發(fā)熱疼痛的感覺；有潰瘍或其他失調的癥狀。
NOTE: DO NOT USE A PIPE WRENCH TO REMOVE THE RELIEF VALVE ASSEMBLY FROM THE BACKFLOW PREVENTER.
注意：不要使用管鉗從防回流閥上拆卸安全閥總成。
Fracture reconstruction faced problems, including difficult demulsification of fracturing fluid, low backflow rate and poor effect.
壓裂改造存在壓裂液破膠難、液體返排率低、效果差等難點。
A combination fill valve and backflow preventer shall be installed on the boiler feed line to provide make-up water to the boiler.
在鍋爐進水管道上應該安裝組合進水閥和防倒流閥，為鍋爐提供補給水。
Watts Regulator offers a wide variety of backflow testing equipment, outlined in the following pages of this guide.
美國瓦茨提供寬廣系列的防回流閥檢測設備，本指南的下列網頁對這些產品作了簡介。
To protect the potable water supply from backflow from a non-potable source due to a drop in supply.
防止由于高度降低而受到非飲用水源回流到飲用水供應系統(tǒng)中。
The ideal solution for residential containment applications that require in-line testable and serviceable dual check backflow preventers.
對于要求在線可檢測和可維修雙止回防回流閥的住宅防污染應用，這是一個理想的解決方案。
To avoid this discharge, install a spring- loaded check valve ahead of the backflow assembly to "lock-in" the downstream pressure.
為了避免這種排放，應該在防回流閥總成前面安裝一個彈簧負載止回閥來“鎖定”下游壓力。
Mechanical backflow preventers have internal seals, springs , and moving parts that are subject to fouling, wear, or fatigue.
機械式防回流閥配置內部密封、彈簧和移動部件可能會被污染、磨損或疲勞。
The 957 and 957RPDA backflow preventer should be tested by a certified tester at the time of installation.
在安裝期間，957和957RPDA防回流閥應該由有資格證書的檢驗員進行檢驗。
The analytic calculation approach for minimum backflow ratio of binary ideal solution multi lateral lines distillation tower is introduced.
提出一種二元理想體系多側線精鎦塔最小回流比的解析計算法。
In-line flow restrictor protects the meter measuring element and the backflow preventer components from damage due to excessive flow.
管內流量限制器保護儀表測量元件和防回流閥部件不會因為過大的流量而受到損壞。
It eliminates the necessity of closing the inlet ball valve which could release pipe scale and foreign matter into the backflow preventer.
差壓表避免關閉進口球閥，從而避免由于重新開啟時可能會將管道結垢和外部物質沖刷下來，并將其帶入防回流閥中。
The utility model relates to a backflow prevention type esophagus supporting tube for medical use.
本實用新型涉及一種醫(yī)用防反流式食道支撐管。
Its own rules include the rules of keeping up with times, interacting between host and guest and two--way backflow.
其自身的規(guī)律有與時俱進、主客互動和雙向回流。
DUAL CHECK VALVE BACKFLOW PREVENTER For low hazard cross- connections . Continuous pressure applications .
雙止回防回流閥用于低危險交叉連接。持續(xù)壓力應用場合。
These spring-operated poppet valves, with optional relief settings, allow free flow in only one direction and prevent backflow.
此類彈簧式提升閥配有可選排放裝置，能夠使單向液體順暢通過，防止回流。
The relief valve may be serviced while on or off the backflow preventer valve.
可以在防回流閥上維修安全閥，或將其從防回流閥拆卸下來維修。
REDUCED PRESSURE ZONE BACKFLOW PREVENTER For High Hazard Cross-connections and continuous pressure application.
減壓區(qū)防回流閥用于高危險交叉連接和持續(xù)壓力應用場合。
