英语释义

1. a downward flow or something that flows down especially a downward flowing current of air

片语

downflow plate降液板

downflow system顺流式系统

downflow evaporator降膜蒸发器

parallel downflow同方向的下流

DOWNFLOW AIR送风风速

downflow well注水井

downflow gas下行风

downflow reactor下流反应器

downflow filter下流式过滤器

英汉例句

• the lo-pro pde provides a class 100 unidirectional flow portable downflow environment, pre-designed for product isolation and spot coverage over process equipment.

  便携式空气清洁器提供了一个100级的单向流动的便携式下流环境，产品的预设计隔离检测和现场设备通过设备的处理而完成。

• at the same flow rate the concentrations of ozone in upflow are higher than that in downflow at the same hrt.

  在相同水流量条件下，水由下向上流时水中臭氧浓度，高于由上向下流时相同水力停留时间时的臭氧浓度。

• this paper describes an experimental and theoretical research on the two-phase flow pattern transition of downflow in vertical helical coils in an air-water loop.

  本文对低压水-空气两相流动在立式螺旋管内向下流动的流型及其转变特性进行了实验和理论研究。

• after the cracking reaction in downflow reactor, reaction products are separated and spent catalyst is directed to stripping and regeneration sections.

  在下流式反应器内的裂化反应之后，分离反应产物，并将废催化剂引导到汽提与再生部分。

• cocurrent downflow circulating fluidized bed is a new type of reactor possessing more effective gas solids contact, lower axial backmixing etc.

  并流下行式循环流化床是一种具有气固接触效率高及轴相返混小等优点的反应器，有广阔的应用前景。

• the characteristics of boiling heat transfer of steam - water two - phase downflow and up-flow in vertical tube are theoretically and experimentally studies in this paper.

  对垂直管内汽水两相下降流动和上升流动时的沸腾传热特性进行了理论和试验研究。

• methods porous ceramics were used as immobilization carrier. optimum conditions for nitrate-nitrogen removal of downflow fixed-bed bioreactor were studied.

  方法采用多孔陶粒作反硝化细菌固定化载体，研究下流式固定床生物反应器的适宜脱氮条件；

• the standard unit is constructed of tubular steel with a painted finish and solid clear vinyl curtain that allows a continuous downflow purge of unidirectional flow airflow.

  标準件是由油漆罩面的钢管和结实的乙烯胶帘构成，这样就能够形成连续的下流清洗单向流。（其他洁凈室类也可用。）

• objective to study the community of denitrifying bacteria and nitrate-nitrogen removal in downflow fixed-bed bioreactor.

  目的研究下流式固定床反应器的脱氮效果及反硝化细菌群落结构。

• the sequence of importance, the prominent factors affecting performance of the distributor, and the optimum structure of downflow wastewater distributors are obtained.

  得到了布水装置工况影响因素的重要性顺序和显着性因素，以及最佳布水装置的结构组合型式。