查询词典 valve

The Valve manufacture Ltd of SINOPEC in Shanghai , is that the inkstone being hit by SINOPEC head office entire money subcompany , being that one gather a valve , fliteration equipment , the store and transportation store up equipment sends out , produces , sells the large enterprise in an integral whole.

上海中石化阀门制造有限公司，系中石化总公司的全资子公司，是一家集阀门、过滤设备、储运储存设备的研发、生产、销售于一体的大型企业。

Methods 36 limbs of recurrent LEVI in 35 cases were enrolled in this study , superficial femoral vein、perforating vein incompetence were all applied with B ultrasound examination and intravenous antegrade angiography of deep vein of inferior member before operation ,8 limbs in 7 cases among them were only operated on superficial vein and the main great saphenous vein was remained ; 28 cases in which main great saphenous vein was drawn out were divided into 2 groups, in group B , operation on superficial vein and external valvuloplasty of superficial femoral vein valve were applied ; in group C ,operation on superficial vein and external valvuloplasty of superficial femoral vein valve combined with subfascial endoscopic perforator vein surgerywere applied.

35例36条肢体复发性LEVI，术前全部行股浅静脉、交通静脉B超及下肢深静脉顺行造影检查，其中7例8条肢体原大隐静脉主干未抽剥仅行浅静脉手术；28例大隐静脉主干已抽剥者随机分为B组和C组，各14例，B组行浅静脉手术+股浅静脉带戒术，C组行浅静脉手术+股浅静脉带戒术联合SEPS。

In this system, an adjustable nozzle, sublimator, high-pressure regulating valve and low-pressure regulating valve are used to replace the conventional evaporator.

在该系统中，采用可调喷嘴、升华器、高、低压流量调节阀代替原系统中的蒸发器，并对该系统进行了理论循环分析。

China·zhejiang teer valve co., lidzhejiang teer valve 浙江台州医院., ltd.

浙江特尔阀门有限公司是一家专业生产和销售阀门的公司。

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的&虚拟仪器&的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

It introduces to install the purpose of the RZD RMBX type pressure reducing valve s in details, and the structure and the working principle of the RZD RMBX type pressure reducing valve s, In addition, it accord to run the situation on the course of the transportational pipeline, It analizes the problems existing in using and proposes the measures to solve the problems.

详细介绍了在长输管道上安装RZD -RMBX型减压阀的目的，以及减压阀结构、工作原理和特点，并根据在输油过程中实际运行情况，分析了使用中存在的问题，并提出解决问题的措施。

The relief valve should be able to be removed by unscrewing the relief valve from the housing.

通过从外壳上旋下安全阀应该能够拆卸安全阀。

The inside sealing structure of valve are plane sealing with blade shape, which can realize large ventilate areas with little unseal height. The outside sealing structures of valve are corrugated tube sealing without leakage point.

阀门的内密封结构采用形如刀口的平面密封，具有平面密封的特点(小的开启高度能获得较大的通气面积)，同时密封轴向力适中；外密封采用与外界无漏点的波纹管密封。

3 A master valve in the high-pressure supply line supplies the washdown circuit and a dump valve at the lowest point ensures that the circuit is only pressurized when in use.

一个在高压供应线使用的控制阀控制着清洗水，并且在最低压点使用一个切断阀，确保系统只有在使用中才被施压。

So that no one Zan does not affect the pressure flow control valve, and no one kind of pressure does not affect the flow control valve.

因此说没有一咱不影响压力的流量控制阀，也没有一种不影响流量的压力控制阀。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。