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双重密封     
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  double sealing
     Development of Metal oxide Arrester with Porcelain Housing of Double Sealing without Series Gaps for A C Systems
     双重密封瓷外套交流无间隙MOA的研制
短句来源
     AC Gapless MOA with Double Sealing on Porcelain Housing for Detecting Exclusive Conductive Current of Active Part
     能单独检测芯体电流的双重密封瓷外套交流无间隙金属氧化物避雷器
短句来源
     This paper introduces the measures taken to raise the zero-point stability of the uplift pressure sensor, including the measures in the design of the membrane structure, the mode of differential change-over, the double sealing structure, etc. The present GY-type uplift pressure sensor can provide the automatic uplift pressure observation system with a reliable information source.
     本文介绍扬压力传感器从传压膜片的结构设计、差动转换方式、取同一电路变换的差值信号、以及可信赖的双重密封结构等多方面措施来提高传感器的零点稳定性,为扬压力自动观测系统提供可靠的一次信息源-高稳定扬压力传感器。
短句来源
     Practice shows that the sealing reliability of MOA have been enhanced by using the double sealing and excluding traditional arc-isolating cylinder and FRP rode.
     实践证明,采用双重密封结构,取消传统MOA中的隔弧筒和引拔棒,提高了MOA的密封可靠性。
短句来源
     Double sealing design has been adopted,thus avoiding fluid or gas leakage. By selecting the materials of different elastic moduli,the inner diameter and thickness,the measuring range and sensitivity of the said sensor can be adjusted.
     采用双重密封设计,避免了流体或气体的渗漏,通过选择不同弹性模量的材料、内径和壁厚,可调整传感器的量程和灵敏度.
短句来源
  double seals
     The design features of HOWDEN VNT type stationary sealed air preheater, such as stationary seal system, double seals, driven system and bearings etc. are described.
     介绍HOWDENVNT型固定密封空气预热器的设计特点 ,如固定式密封系统、双重密封、驱动系统和轴承等。
短句来源
     Aimed at the insufficient seal problems of monolayer mechanical seal and flexible seal, the double seals are applied in four 5×104 floating roof ta nks at Zhenhai station and Baishawan stationof Yong-Hu-Ning crude oil pipeline.
     针对浮顶油罐单层机械密封和软密封存在的不足,在甬-沪-宁原油管道镇海、白沙湾等站场新建的4座10万m3浮顶油罐上采用了双重密封
短句来源
  double seal
     Application of Liquid-filled Double Seal in Floating Roof Tank
     充液式双重密封在浮顶罐中的应用
短句来源
     1~5 tanks which were designed and built earlier by foreign contractor and No. 6~8 tanks which were designed by Jianghan Design Institute later is made. The results show that the effectiveness of the double seal form of ″primary seal + secondary seal″ used in No.
     文章就外方设计先建成的1~5号罐与江汉设计院设计的6号、7号和8号罐的设计进行了对比,指出采用“一次密封+二次密封”的双重密封型式,其密封效果优于原来的“一次密封+挡雨板”密封型式。
短句来源
  “双重密封”译为未确定词的双语例句
     A double casing sealed structure is used in the ionization chamber with thin windows of large diameter.
     电离室采用大口径双重密封结构,制作工艺难度大,要求高。
短句来源
     With the functions of rainproof, paraffin scraping and dual-seal, the device has strong economical and practical value.
     该装置具有防雨、刮蜡、双重密封等多种功能,具有很强的经济价值和实用价值。
短句来源
     The floating roof roller frame seal thchnology developed at home realized dual seal and had the advantages of good adaptability,large sealing force,small friction force and multi function combination etc.
     国内开发的浮顶滚轮骨架密封技术 ,实现了双重密封且具备适应性强、密封力大、摩擦力小及多功能组合等优点。
短句来源
     Forms of oils volatilization during transportation and storage are presented. Steps taken to reduce the volatilization, resulting pollution and oils loss, which include dual sealing and setting of recovering system, are described.
     简要介绍了成品油在储运过程中油气挥发的几种形式,阐述了降低储运过程中油气挥发应采取的措施,即对储油罐进行双重密封、设置油气系统,以减少成品油蒸发损耗和对环境的污染。
短句来源
     Moreover,the obturation equipment was greatly improved,by using both rubber and asbestos to seal up.
     改进了密封装置,即用橡胶密封圈和石棉盘根双重密封.
短句来源
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  double seals
Accordingly, double seals are preferred for crystallizing or abrasive liquids as the seal faces are only exposed to the flush liquid.
      
All the necessary openings in the top plate will be closed using double seals with interstitial space to be monitored.
      
Double seals must be pressurized so that the seal chamber has about 15 PSI higher pressure than the pump discharge pressure.
      
Figure 47.--Double seals mechanically attached to carrier plate with Inconel wires for scrub testings.
      
The company uses epoxy, dielectric grease, neoprene and double seals for electrical connectors.
      
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  double-sealed
Samples of 100-200 mg dry weight were double-sealed into polyethylene bags and irradiated in a swimming pool reactor with a thermal neutron flux of 1013n·cm-2·s-1 for 44 hours.
      
It is focused through a double-sealed, differentially pumped, 5 cm diameter ZnSe window into a UHV system.
      
  double seal
A new thorax-drainage system with double seal was checked for clinical use.
      
Aggregate for bituminous double seal coat shall conform to the requirements in the table below for grading and quality.
      
A double seal pump may not have any seal damage at all.
      
A double seal application of two single seal coats immediately after the first seal on designated areas of an existing pavement.
      
A double seal of zinc oxide and eugenol and composite was placed.
      
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This paper introduces the measures taken to raise the zero-point stability of the uplift pressure sensor, including the measures in the design of the membrane structure, the mode of differential change-over, the double sealing structure, etc. The present GY-type uplift pressure sensor can provide the automatic uplift pressure observation system with a reliable information source.

本文介绍扬压力传感器从传压膜片的结构设计、差动转换方式、取同一电路变换的差值信号、以及可信赖的双重密封结构等多方面措施来提高传感器的零点稳定性,为扬压力自动观测系统提供可靠的一次信息源-高稳定扬压力传感器。

A penetrating ionization chamber can be used in a raphytron (a radiographic linear electron accelerator for non-destructive testing) to monitor the output dose and dose rate of an accelerator and to provide monitoring and control signals for dose protection, but its existence less affects the output characteristics of the accelerator. Its linearity and long-term stability are two keys in regulating, testing and operating of an accelerator. A double casing sealed structure is used in the ionization chamber with...

A penetrating ionization chamber can be used in a raphytron (a radiographic linear electron accelerator for non-destructive testing) to monitor the output dose and dose rate of an accelerator and to provide monitoring and control signals for dose protection, but its existence less affects the output characteristics of the accelerator. Its linearity and long-term stability are two keys in regulating, testing and operating of an accelerator. A double casing sealed structure is used in the ionization chamber with thin windows of large diameter. The fabricating technology of the chamber is extremely difficult due to its strict limitation. The penetrating performance is better owing to the use of thin windows of 80 mm in diameter and 0. 05 mm in thickness. The total thickness of its thin windows and plate electrodes is so chosen that the absorbing intensity should be less than 1 % to the X-ray beam in the energy from 1 MeV to 4 MeV. When a dose rate is 1 Gy/min on the central axis at 1 meter from the target of an accelerater, the sensitivity is high and the ionization current is larger than 0. 55 uA. It has good linearity and saturation characteristics. The nonlinearity is less than 1% , when a dose rate is less than 4.15 Gy/min on the central axis at one meter from the target of an accelerator. When pulse dose rate borne by the chamber is near 2X105 Gy/min and the working voltage is at -700 volts, the recombination correction is less than 1. 5%. It has good repro-ducibility too. The reproducibility of ionization current of the chamber has been measured twice in an interval of nineteen months, and the results were all the same about 0. 5%. The leakage current of the chamber is less than 10-13 A, when the working voltage is -700 volts. The chamber has been working steadly and reliably for a long time under the conditions of adverse circumstances and strong interference as well as the existence of movement and shock.

穿透电离室用于在线监测探伤加速器输出剂量率、累计剂量,并为剂量保护提供监测和控制信号。电离室的存在不影响加速器的输出特性。该电离室的线性、工作的长期稳定性是加速器调试和运行的关键之一。电离室采用大口径双重密封结构,制作工艺难度大,要求高。电离室透射性能好,薄窗直径Φ80mm,厚0.05mm,薄窗及电极总厚度对1~4MeV Ⅹ射线强度吸收小于1%。电离室的灵敏度高,当加速器中心轴线上距靶一米处的剂量率为1Gy/min时,电离室电离电流大于0.55μA。电离室线性好、饱和特性好,当加速器中心轴线上距靶一米处的剂量率小于4.15Gy/min时,其非线性小于1%;当电离室工作电压-700V,且承受的脉冲剂量率高达2×10~5Gy/min时,其复合校正小于1.5%。电离室的重复性也好,相隔一年零七个月,前后两次测得电离室的重复性均为0.5%左右。当电离室工作电压-700V时,电离室漏电流小于5×10~(-13)A。在恶劣环境下、强干扰场中和运动及冲击条件下,电离室能长期稳定可靠地工作。

Deviations of ovality, perpendicularity and partial concave-convex on large-scaled storage tanks are inevitably in construction. Such factors as medium, climate, temperature and tank foundation settlement during the operation of storage tanks will cause changes in geometric shape and dimension of storage tank's floating roof, thus affect sealing result of floating roof tanks. Roller skeleton seal applies several seal skeletons in circular arc line section and make the seal skeleton a chain by means of rotating...

Deviations of ovality, perpendicularity and partial concave-convex on large-scaled storage tanks are inevitably in construction. Such factors as medium, climate, temperature and tank foundation settlement during the operation of storage tanks will cause changes in geometric shape and dimension of storage tank's floating roof, thus affect sealing result of floating roof tanks. Roller skeleton seal applies several seal skeletons in circular arc line section and make the seal skeleton a chain by means of rotating shift joint and changeable with the tank shape changed under an action of spring force. There equip with rollers at each end of skeleton and they will travel along the tank wall as the floating roof moves up and down, and maintain the distance between the seal skeleton and tank wall. With the functions of rainproof, paraffin scraping and dual-seal, the device has strong economical and practical value.

大型储罐在施工中椭圆度、垂直度及局部凸凹度的偏差不可避免。在储罐的操作过程中介质、气候、温度以及储罐基础沉降等因素,会引起储罐和浮顶的几何形状和尺寸的变化,从而影响浮顶储罐的密封效果。滚轮骨架密封采用若干个圆弧线段密封骨架,通过转轴连接,使密封骨架象链条一样在弹簧力的作用下随着储罐改变形状。骨架端部装有滚轮,当浮顶上下移动时滚轮就在罐壁上行走,并保持密封骨架与罐壁的距离不变。该装置具有防雨、刮蜡、双重密封等多种功能,具有很强的经济价值和实用价值。

 
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