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the overhead
相关语句
  塔顶
     In the overhead gas phase,φ(H2S) is≤2×10-6,φ(CH3OH) is≤3×10-4,and the pressure drop of total column is less than 0.08 MPa.
     塔顶出口气相中φ(H2S)≤2×10-6,φ(CH3OH)≤3×10-4,全塔阻力小于0.08 MPa。
短句来源
     THF content of distillation of atmospheric column is about 94.5%, THF mass fraction in overhead product and bottom residue of pressurized column reach 88.8% and 99.9%,the overhead product return to atmospheric column.
     常压塔的馏出物浓度达到94.5%左右,加压塔顶馏出液和底部产品浓度分别达到88.8%和99.9%,塔顶馏出液返回常压塔.
短句来源
     Application of SF-121B Neutralization Corrosion Inhibitor in the Overhead or Atmospheric-vacuum Distillation Unit
     SF-121B中和缓蚀剂在常减压塔顶的应用
短句来源
     The 316L austenitic steel tube bundle of the overhead heat exchanger H1001 of atmospheric distillation unit in Luoyang Petrochemical Complex had to be replaced after an operating circle because of severe corrosion leakage.
     中国石化股份有限公司洛阳分公司常压塔顶换热器H1001管束的材质为316L奥氏体不锈钢,运行一个周期后腐蚀泄漏严重,被迫更换。
短句来源
     The analysis indicated that the corrosion was mainly the H 2S-HCl-H 2O corrosion of the overhead and condensing system caused by higher salt content in the desalted crude (10~20 mg/L) and higher sulfur (1.5%~2.5%). The culprit of the corrosion in high-temperature heavy oil section was naphthenic acid.
     腐蚀加重的主要原因是由于原油脱后盐含量偏高 ( 10~ 2 0mg/L)、硫含量高 ( 1.5 %~ 2 .5 % )所造成的塔顶及其冷凝冷却系统H2 S -HCl-H2 O环境的腐蚀 ,高温重油部位则主要是环烷酸引起的腐蚀。
短句来源
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  架空
     Manufacture of the overhead conductors for 500 kV transmission line
     500kV输电线路用架空导线的制造
短句来源
     Discussion on the Design of the Overhead Transmission Line
     架空输电线路设计小议
短句来源
     In this paper the author introduces the necessity of designing the compound grounding device in the overhead transmission line and the importance of the device in engineering application and maintenance.
     介绍复合型接地装置在高压架空送电线路中设计的必要性,以及其在工程应用和运行中的重要性。
短句来源
     An Analysis of the Overhead Public Space Design of Urban Residence Ground Floors
     城市住宅底层架空式公共空间设计浅析
短句来源
     The Application and Popularization of the Overhead Equipment in the Gradient Tunnel in the Mine
     斜巷架空乘人装置在矿山的应用和推广
短句来源
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  “the overhead”译为未确定词的双语例句
     Simulations show that, compared with AODV (ad hoc on-demand distance vector) and DSR (dynamic source routing), this protocol saves the overhead of the protocol and reduces the end-to-end delay of the packet.
     仿真结果表明:与AODV(ad hoc on-demand distance vector)和DSR(dynamic source routing)等协议相比,该协议节省了协议开销,减小了分组的端到端时延.
短句来源
     Application of virtual pilot controller based on PLC in the overhead crane
     基于PLC的虚拟主令控制器在桥式起重机中的应用
短句来源
     By analyzing the overhead introduced by the protocol mechanism, the maximum available bandwidth provided by the IEEE802.11b WLAN is calculated, and the influence of the application environment upon the available bandwidth is analysed.
     分析协议机制引入的控制开销,求出在不同访问控制机制下IEEE802.11b可以提供的最大有效带宽,分析应用环境对有效带宽的影响.
短句来源
     The corrosion in the overhead system was H 2Cl-H 2S-H 2O corrosion.
     当加工上述混合原油时 ,其脱后原油盐含量大于 5mg/L ,三顶冷凝水中S2 -含量很高 ,因此减、常顶系统的腐蚀为H2 Cl-H2 S -H2 O型腐蚀。
短句来源
     The Application of PLC in the Overhead Crane
     PLC在高架吊中的应用
短句来源
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  the overhead
The algorithm of control of a multivariable plant was used to solve the problems of control of the overhead crane and calculation of the cost of option for buy (sell) of shares.
      
Furthermore, these metrics are measured at the sender node to reduce the overhead of control information over networks.
      
There is a trade-off between the reduction of disk access and the overhead of CPU processing.
      
By applying to a typical bioinformatics workflow, we concluded that the overhead time related to message exchange is very short.
      
By monitoring and simplifying the trust dependence between domains, this model can solve problems in trust measurement such as deny of service (DoS) attack, Host security, and reduce the overhead of measurement.
      
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The overhead contact system is an important pant of the electrifiedrailWay set up along the line.The installation curves are presented as thetechnical basis for setting up catenary suspensions.These Curves providenecessary parameters used in the design of overhead contact systems.This article describes how computer is used in obtaining the installationcurves.Techniques used in programming are duly discussed.

接触网是电气化铁道的重要组成部分,是沿线路架设的特殊供电网路。安装曲线是为架设接触悬挂而提供的技术依据,是接触网设计的重要内容。为适应现场生产的需要,本文扼要地介绍了电子计算机在接触网设计中的具体应用,重点叙述了安装曲线的组成内容以及程序设计中的几个问题。

This new furfural refining process consists of: (1) neutralizing condensate in the decanter, (2) rectifying crude furfural in a batch packed column with Sulzer packing type CY under vacuum and, (3) gathering the rectified residues and the lean layer of the overhead distillate individually for recovering furfural from them.

本糠醛精制新工艺包括蒸馏塔塔顶冷凝液在分醛罐中中和、粗糠醛在间歇式网状波纹填料塔中真空精馏,以及分别集中和单独回收精馏尾醛和头馏分水层中的糠醛等三部分。 从蒸馏塔塔顶出来的冷凝液在分醛罐中用1—2%NsOH溶液中和,使回流入塔的稀醛水层的pH值在6.5—7,从而控制粗醛的pH值在6以上,然后将粗醛送去真空精馏。 本糠醛精制新工艺的精制率高,产品质量符合国家优级品标准。

In this paper various metal transfer modes in the pulse MIG welding with steel electrode are studied by means of high speed cine camera and oscillograph. Experiments have been made in the downhand and the overhead welding positions. The authors suggested that, though both the monodroplet per pulse and the multidroplet per pulse transfer modes can provide a smooth and strong axial metal transfer, the former exists only in a narrow welding condition region while the latter in a wider region. So the multidroplet...

In this paper various metal transfer modes in the pulse MIG welding with steel electrode are studied by means of high speed cine camera and oscillograph. Experiments have been made in the downhand and the overhead welding positions. The authors suggested that, though both the monodroplet per pulse and the multidroplet per pulse transfer modes can provide a smooth and strong axial metal transfer, the former exists only in a narrow welding condition region while the latter in a wider region. So the multidroplet per pulse transfer mode is more favourable. There are two critical current levels demarcating the distinctively different metaltransfer mode regions in pulse MIG welding. The first is called the critical pulse transfer current, being the lower threshold current of the monodroplet per pullse transfer; and the second is called the critical arc jumping current, being the lower threshold current of the multidroplet per pulse transfer. The relation between the arc luminous core shapes and the metal transfer modes of the pulse MIG welding are also studied and discussed. The authors have found that the starting of the multidroplet per pulse transfer is always accompanied with an "arc jumping", i. e. the luminous arc root attached to the front surface of the droplet jumps instantly up to the bottom of the constricted neck. This arc jumping phenomenon takes place at a certain amplitude of pulse current with a certain correlated pulse current time. In the conventional MIG welding process this arc jumping phenomenon appears also at the time a globular transfer is converted into a streaming transfer. In essnce the critical current of the conventional MIG welding process is just the critical arc lumping current in a continuous current condition. This is supported by the evidence that by extending the pulse current time the critical arc jumping current in the pulse MIG process will gradually approach to the critical current of streaming transfer in the conventional MIG process. During the process of both monodroplet and multidroplet per pulse transfer the droplet detachment can take place even after the cutoff of the pulse current. This may be attributed to the inertial force of the molten metal in motion and to the instabiility of the thin liquid metal column on the electrode tip.

本文利用高速摄影机和示波器研究了钢焊丝熔化极脉冲焊的各种熔滴过渡形式,试验是在平焊和仰焊位置进行的。作者指出虽然一脉冲一滴和一脉冲多滴的过渡形式在平焊和仰焊位置都能提供稳定而有力的轴向熔滴过渡,但前者只能在很窄的焊接规范区存在,而后者有较宽的焊接规范区间。因此一脉冲多滴的过渡形式是更合理的。熔化极脉冲焊存在两个区分不同熔滴过渡区的临界电流。第一个称为“临界脉冲过渡电流”它是一脉冲过渡一滴的下限电流。第二个称为“临界跳弧电流”,它是一脉冲过渡多滴的下限电流。文中还对熔化极脉冲焊的电弧形态与熔滴过渡形式的关系进行了研究和讨论。发现一脉冲多滴过渡的产生过程总是伴随着“跳弧”现象,亦即附着在熔滴端面上的烁亮弧根突然上跳到缩颈的根部。这种跳弧现象在一定的脉冲电流幅值和相应的脉冲电流时间产生。在通常的熔化极气电焊中,当由颗粒过渡转变到射流过渡时也出现这种跳弧现象。实质上,常规的熔化极气电焊过程的临界电流就是连续电流下的临界跳弧电流。下面的现象可说明这一点,在熔化极脉冲焊过程中,当延长脉冲电流时间时,临界跳弧电流将逐渐接近常规熔化极气电焊的射流过渡临界电流。在一脉冲一滴和一脉冲多滴的过渡过程,在脉冲电流停止后还能出现熔滴脱...

本文利用高速摄影机和示波器研究了钢焊丝熔化极脉冲焊的各种熔滴过渡形式,试验是在平焊和仰焊位置进行的。作者指出虽然一脉冲一滴和一脉冲多滴的过渡形式在平焊和仰焊位置都能提供稳定而有力的轴向熔滴过渡,但前者只能在很窄的焊接规范区存在,而后者有较宽的焊接规范区间。因此一脉冲多滴的过渡形式是更合理的。熔化极脉冲焊存在两个区分不同熔滴过渡区的临界电流。第一个称为“临界脉冲过渡电流”它是一脉冲过渡一滴的下限电流。第二个称为“临界跳弧电流”,它是一脉冲过渡多滴的下限电流。文中还对熔化极脉冲焊的电弧形态与熔滴过渡形式的关系进行了研究和讨论。发现一脉冲多滴过渡的产生过程总是伴随着“跳弧”现象,亦即附着在熔滴端面上的烁亮弧根突然上跳到缩颈的根部。这种跳弧现象在一定的脉冲电流幅值和相应的脉冲电流时间产生。在通常的熔化极气电焊中,当由颗粒过渡转变到射流过渡时也出现这种跳弧现象。实质上,常规的熔化极气电焊过程的临界电流就是连续电流下的临界跳弧电流。下面的现象可说明这一点,在熔化极脉冲焊过程中,当延长脉冲电流时间时,临界跳弧电流将逐渐接近常规熔化极气电焊的射流过渡临界电流。在一脉冲一滴和一脉冲多滴的过渡过程,在脉冲电流停止后还能出现熔滴脱离的现象,这可能是由于焊条熔化金属运动的惯性和焊条端头上金属细液柱的失稳现象所引起的。

 
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