助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   pumping 在 工业通用技术及设备 分类中 的翻译结果: 查询用时:0.196秒
图标索引 在分类学科中查询
所有学科
工业通用技术及设备
石油天然气工业
物理学
无线电电子学
建筑科学与工程
地质学
水利水电工程
地球物理学
核科学技术
更多类别查询

图标索引 历史查询
 

pumping
相关语句
  抽气
    ANALYTIC CHARACTERISTICS OF THE PUMPING LINE IN THE ~3He POT OF THE ~3He CRYOSTAT
    ~3He恒温器减压池抽气管路的解析特征
短句来源
    Evolution and Derivation of Calculation Formula Measuring the Pumping Rate of Vacuum Pump
    真空泵抽气速率测试计算公式的演变与推导
短句来源
    Co-efficient Matrix Method of Simplified Calculation for the Pumping Performance of Threedimensional Blade Arrangement of Turbomolecular Pump
    涡轮分子泵三维叶列抽气性能简化计算的几率矩阵法
短句来源
    Change of the Gas Temperature in the Course of Pumping and Charging in Vacuum Chamber
    抽气和充气过程中真空容器内气体温度的变化
短句来源
    The Monte Carlo Simulation or influence of Clearance on Turbomolecular Pump Pumping Performance
    间隙对涡轮分子泵抽气特性影响的蒙特卡罗模拟
短句来源
更多       
  “pumping”译为未确定词的双语例句
    Geothermal Down-Well Pumping System Cycle With R-113 As Working Fluid
    F_(—113)井下地热泵系统热力循环
短句来源
    Calculation of Heart Pumping Power
    心脏功率的计算
短句来源
    The Excavation for the Foundation pit and Controlled Blasting for YuMenko water pumping project
    禹门口提水工程基坑开挖控制爆破
短句来源
    Using 532 nm pulsed laser with the repetition rate of 10 Hz as a pumping source, the system can rapidly reconstruct the 2D optical absorption image inside phantom, the data acquisition time of a single frame of PA image is less than 200 s and the lateral resolution is less than 2 mm.
    采用波长532nm、重复频率10Hz的脉冲激光,系统可快速重建样品内部光学吸收分部的二维图像,单帧图像数据采集时间小于200s,成像横向分辨率小于2mm.
短句来源
    Design Method of Primary-Secondary Circuits for Chilled Water Pumping System
    冷冻水二次环路系统的设计思路
短句来源
更多       
查询“pumping”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  pumping
The main technology for high power fiber lasers, including laser diode beam shaping, fiber laser pumping techniques, and amplification systems, are discussed in detail.
      
The heat transfer enhancement under identical pumping power condition for the attack angle of 30° is larger than that for the attack angle of 45° either for staggered or for aligned tube bank arrangement.
      
Meanwhile, principles of several typical pumping methods such as mechanical, electromagnetic or peristaltic pumps will be illustrated.
      
pumping power per unit heat transfer area were plotted.
      
Proton Pumping in Growing Part of Maize Root: Its Correlation with 14-3-3 Protein Content and Changes in Response to Osmotic Str
      
更多          


Cryogenic pumping represents the latest method in high and ultra-high vacuum-obtaining technique. It has the advantages of high pumping speed, freedom from hydrocarbon-contamination, and adaptability to a wide range of operating pressure. This paper deals with the design concepts, the actual construction and the main performances of ZDB-150 type cryopump. In the free molecule flow region the pumping-speed is greater than 650 1/sec and 1400 1/see for air and hydrogen respectively. The ultimate...

Cryogenic pumping represents the latest method in high and ultra-high vacuum-obtaining technique. It has the advantages of high pumping speed, freedom from hydrocarbon-contamination, and adaptability to a wide range of operating pressure. This paper deals with the design concepts, the actual construction and the main performances of ZDB-150 type cryopump. In the free molecule flow region the pumping-speed is greater than 650 1/sec and 1400 1/see for air and hydrogen respectively. The ultimate pressure is less than 6×10~(-10) torr. The two-stage G-M closed-cycle refrigerator provides 2.5 watts at 15 K for the second stage and 25 watts at 70 K for the first stage. A comparison between the performances of the ZDB-150 cryopump and some other commercial types is listed at the end of this paper.

低温抽气是超高真空获得技术的新方法,它具有抽速大、工作压强范围宽、效率高、清洁无污染等特点。本文介绍了ZDB—150型低温泵的设计原理和实际结构。在实验的基础上,得出了泵的主要性能指标,并对实验结果进行了讨论。同时,就该泵的主要性能与国外同类产品进行了比较。

Based on the theoretical analysis, a geothermal down-well pumping system cycle with R-113 as working fluid is suggested and its thermodynamic effects on the cycle system is treated.Analytical results show that the Pumping cycle system can be effectively applied at temperature about 160℃, i. e the lower temperature geothermal water well.

文中根据理论分析结果提出以低沸点物质F_(-113)为工质组成井下地热泵循环,并论证其热力学效果。指出该系统可以有效地用于160℃,即温度水平较低的地下热水井。

Some characteritics of the gas released during activated and reactivated period,ionized type Zirconium-Aluminium getter pump analyzing with a quadrupole mass-spectrometer,are described in the paper.And for the changes partial pressure an analysis of mass-spectrum are made in absorbed H_2 and CH_4.It has been indicated that because CH_4 through a catalysis of heated W-filament decomposed as C and H_2;Carbon.is absorbed on the surface of W-filament and its heat diffusion can enter into the interior of W-filament.H_2...

Some characteritics of the gas released during activated and reactivated period,ionized type Zirconium-Aluminium getter pump analyzing with a quadrupole mass-spectrometer,are described in the paper.And for the changes partial pressure an analysis of mass-spectrum are made in absorbed H_2 and CH_4.It has been indicated that because CH_4 through a catalysis of heated W-filament decomposed as C and H_2;Carbon.is absorbed on the surface of W-filament and its heat diffusion can enter into the interior of W-filament.H_2 is immedidately absorbed by Zr-Al getter.Then,a critical temperature measured for CH_4 decomposed is about 1700℃. However,electron impact with CH_4 would result in the additional decomposition and ionization, then CH_4 could be contributed to the absorption.The experiments have shown that,under W-filament temperature becoming 2063℃,when ionized current is 57 mA,pumping speed of Zr-Al getter pump for CH_4 is some 475ml/s,and specific speed is 16.8ml/s·cm~2.

用四极质谱仪分析锆铝吸气剂泵在激活和再激活期间的气体释放特性,以及吸氢和吸甲烷期的分压强变化。这有助于我们对过程中发生的现象作吸气机理的探讨。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关pumping的内容
在知识搜索中查有关pumping的内容
在数字搜索中查有关pumping的内容
在概念知识元中查有关pumping的内容
在学术趋势中查有关pumping的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社