upstream是什么意思

网络释义

用法例句

Model calculation and analysis of heat and mass transfer of air and water in direct contact counter flow;

空气与水逆流直接接触热质交换过程模型计算及分析

Through analysis of causes of surge and counter flow incidents of a blast furnace blower,the disposal measures to improve the control system were raised.

通过对一起高炉鼓风机喘振、逆流事故的原因分析,提出了完善改进控制系统的处理措施,增强了高炉鼓风机安全稳定运行的可靠性,有效地避免了类似事故的发生。

The theoretical results of cross current and counter flow were obtained by simulation calculation.

选择 1,1,1 三氯乙烷为糠醛和水萃取分离的溶剂 ,建立错流和逆流模拟计算框图 ,采用试差法模拟错、逆流分离结果 。

The optimum design model of countercurrent spray dryer and its application;

逆流喷雾干燥器优化设计数学模型及其应用

Study on optimum design of countercurrent rotary dryerand application development;

逆流回转圆筒干燥器优化设计研究与软件开发

Introduction to the imported 3-effect countercurrent falling-film evaporation facility and the solid caustic process;

引进三效逆流降膜蒸发装置及固碱制备工艺介绍

The result shows that the purification efficiency is higher under counter current operation than that under co-current operation.

结果表明:逆流操作的净化效率高于顺流,气(液)体流量对出、进口气(液)体温差有较大影响。

Compared the result of experiment with single leaching, multi leaching of cross current and continuous counter current leaching, in the light of characteristic of waste and inferior tobacco leaves, a special leacher of continuous counter current is devised, and the efficiency of leaching by the operating condition tested too.

对单级浸取、多级错流浸取和连续逆流浸取进行了试验比较 ,并结合废次烟叶浸取的特点 ,设计出一种连续逆流浸取器 ,并研究了该装置的操作参数对浸取率的影响。

The gap vibration of axial-flow compressor taking place in its operation and the brought serious effect to other relative equipments are introduced, the counter current protection to prevent that in AV40-11 compressor in Xingtai Iron and Steel Company is analyzed, which meets the demand of B.

介绍了轴流压缩机运行中发生的喘振及其对相关设备造成的严重影响,分析了邢台钢铁公司使用的AV40-11轴流压缩机防喘振和逆流保护原理,该轴流压缩机的投用满足了对高炉供风的需要。

Analysis on Reflux in Hysterosalpingography;

子宫输卵管造影逆流原因分析——附3例报告

Occurrence of Reflux Following Hysterosalpingography:Comparison of Using Metal Cannula and Balloon Catheter;

两种子宫输卵管造影方法发生对比剂逆流的比较

So it is called the counter-current.

五十年代初期,吉田内阁对欧美模式的民主化改革措施进行修改,并加强了对日本共产党等革新势力的压制,被称之为反民主化的“逆流”。

Mean temperature difference for countercurrent flow and cocurrent flow in steady continuous heat transfer has been deduced uniformly.

采用统一的方法对定态传热逆流和并流的平均温差进行了推导。

The following problems in heat transfer are discussed,which are the logarithmic mean temperature difference and the arithmetical mean temperature difference,the mean temperature difference in countercurrent flow and the mean temperature difference in co-current flow,and the mean temperature difference in crisscross flow.

本文主要讨论了以下三个问题:传热过程中对数平均温度差和算术平均温度差;逆流平均温度差和并流平均温度差;错、折流的平均温度差。