英语释义

1. a pipe to conduct something downward: such as

2. a pipe for leading the hot gases from the top of a blast furnace downward to the dust collectors and flue system

3. a tube larger in diameter than the water tubes in some watertube boilers to conduct water from each top drum to a bottom drum under the influence of thermal circulation

片语

fishtailed downcomer鱼尾喷管

distributed downcomer分散下降管

side downcomer侧面降液管

central downcomer中心降液管

centralized downcomer集中下降管

downcomer liquid降液管液层

Downcomer backup降液管液柱高度

downcomer space下水空间

英汉例句

• the steel ring degree of the produced plastic steel downcomer is doubled to be increased, and the quality rises to a higher step than before.

  生产的塑钢下水管其钢环度增加几倍，在质量上比以前上了一 个台阶。

• the ratio of downcomer to riser cross sectional area, the bottom clearance and the ratio of height to diameter of the reactor are proved to be important of the cell growth behavior.

  下降室和上升室的截面积比，底部系数，高径比这些几何参数和表观气速都与细胞的生长紧密相关。

• the key factors for designing the tray with high liquid capacity are downcomer configuration, specifications and layout.

  为了通过高液量，塔板设计的关键是降液管结构、尺寸和布置。

• the study on flow and heat transfer in downcomer under loss of coolant accident (loca) is important to the safety of reactor pressure vessel (rpv).

  失水事故工况（loca）下反应堆下降环腔内的流动和传热研究，对反应堆压力容器（rpv）的安全具有重要的意义。

• in order to research its natural circulation, the downcomer part and the riser part is distinguished, where there are no mass and energy transferred between them.

  该模型为体现其自然循环的特性，将下降段与上升段区分开，并假定两者之间不存在质量和能量的交换。

• arc, semi-annular and radial downcomers' affections on the tray efficiency were compared, the main style, structure, advantage and disadvantage of the new downcomer in tower were introduced.

  比较了弓形、半环形和径向形降液管对塔板效率的影响，介绍了板式塔中新型降液管的主要形式、结构及优缺点。

• the band steel coarseness processor can be easily arranged on the plastic steel downcomer production line without changing the operating condition of the production line.

  可以很容易的安装在塑钢下水管生产线上，不改变生产线的运行现状。

• after looking up, this is really take outside the downcomer and the air conditioning machine as a way, skids burglary gang which the window enters the inner rooms.

  经查，这果然是个以落水管和空调外机为路径，撬窗入室的盗窃团伙。

• the previous seal line proposed by xu is too conservative, in which the criterion of almost not allowing the vapor to leak through the downcomer was set.

  以往徐崇嗣提出的自封线以降液管几乎不漏气作为自封点。

• complicated mean rtd profiles on single-pass tray and on two-pass center downcomer tray are observed, but relatively uniform flow appears on side downcomer tray.

  单溢流塔板和双溢流中央降液管塔板上液体的平均停留时间分布相当复杂，而双溢流边降液管塔板上的液体流动则比较均匀。

• the chocking experiments of an approximating industrial scale pendant water downcomer was performed.

  对水流的接近工业规模的悬挂式自液封降液管进行了扼流试验。

• structure and operating performance of new fixed valve tray with suspending downcomer (dj - 5 tray) was introduced.

  新型固定阀悬挂降液管塔板是一种新型大通量高效dj塔板。

• according to continuity law of hydrodynamics, theory equation between riser gas holdup and downcomer gas holdup in tbcr is derived, and value of the important parameter a in the equation is discussed.

  根据流体力学的连续性原理，推导出了三相生物流化复合反应器中上升区气含率与下降区气含率的理论关系式，并对其中的重要参数a的取值进行了讨论。

• the standard deviation increased sharp in the formation of large gas bubbles in the downcomer .

  在下降管中产生大型气泡时，标準偏差会有急剧增加的现象。

• the characteristic configuration and performance of the downcomer that dj trays employ are appropriate for operations at high liquid rates.

  dj塔板系列具有独特的降液管型式，其结构和性能适用于高液通量操作；

• in flow visualization experiment, it is found that flow rate of safety injection has major effect on flow regime in downcomer .

  通过流动可视化实验，得到了安注流速，下降环腔流速以及含气率对环腔内流动形态的影响。

• a new structural component settled in the downcomer of tray column for mechanical defoaming was developed.

  研究开发了板式塔降液管机械消泡板组件。

• a large majority of ash slag contained in the gas sinks to the liquid tank through an outlet at the tail end on the bottom of the downcomer due to the inertia action.

  气体中所含的大部分灰渣由于惯性作用，通过下降管底部的末端出口沉入液池。

• in fully spray region, gas flow affects the liquid overflow capacity in the downcomer or conical over flow device, hence affects the pressure drop significantly.

  全喷射区内，气速影响溢流管和溢流锥的溢流能力，而使气速明显地影响塔板有效压降。

• the three dimensional distribution of gas holdup in segment downcomer has been measured by using the capillary probe and the photoelectrical detect technique.

  采用毛细管光电检测技术，测定了弓形降液管内气含率的三维分布。