• The flow resistance device is a important unit for achieving electron beam welding in partial vacuum.

    装置实现低真空电子束焊接重要部件

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  • The heat transfer and flow resistance performance of corrugated tube heat exchanger were examined by oil, water, and steam.

    采用水蒸气波纹换热器传热流动阻力性能进行了试验研究。

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  • A calculation method is presented for heat transfer and flow resistance of a spiral plate heat exchanger for the gas-liquid.

    提出了螺旋板式换热器用于-液热交换时流动阻力以及传热设计的计算方法

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  • The possibility of utilizing regenerator flow resistance to suppress DC flow is theoretically and experimentally investigated.

    本文理论实验研究了通过改变回热阻进行直流抑制可行性

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  • Mainly used for high pressure or flow resistance of the working conditions, but also can be used as the bottom discharge valve.

    主要用于一些高压阻小工况作为放料阀使用。

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  • The equivalent radial clearance of flow resistance is an important parameter for hydrostatic bearings in theory and calculation.

    等效间隙静压支承理论分析计算中的一个重要参数

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  • In order to acquire turbulent flow resistance rule in SK static mixer, a new numerical model of fluid resistance was put forward.

    为了获得流体SK型静态混合器湍流流动时流动阻力规律,提出一种新的流体阻力的计算模型

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  • Based experimentations, the performance characteristic on enhanced heat transfer and flow resistance of twisted tube were educed.

    通过实验得出了螺旋扁强化传热阻力性能特性

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  • The characteristic of turbulent heat transfer and flow resistance with multi-longitudinal vortexes in tube is numerically analyzed.

    对多纵向管内湍流换热和特性进行了数值分析。

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  • Based on the theory of fire control volume, a forced model for analyzing the component of flow resistance in fire zone was developed.

    火灾控制理论基础,建立了一个用于分析火区阻力构成的火灾控制体受力模型

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  • Medium through the valve when the flow direction of these changes, so a higher cut-off valve on the flow resistance of the other valve.

    介质通过此类阀门流动方向发生了变化因此截止流动阻力高于其它阀门。

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  • The effects of the heat flux, wall temperature and flow resistance on the nondimensional entropy generation density have been discussed.

    讨论了壁面热流、壁面温度流动阻力无因产强度影响

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  • The grooves on the heated surface lowered the flow resistance and enhanced the film heat transfer coefficient 2-3 times that of flat plates.

    相同雷诺数板平均表面系数是平板的2~3同时减小流动阻力

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  • The result of this research provides a reliable theoretical basis for using computer to calculate the turbulent flow resistance coefficient.

    此项研究结果计算机进行紊流阻力系数计算提供可靠理论依据

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  • As one of the key points in the design of a pipeline transport, study on the flow resistance of pipeline sand transport is of great significance.

    作为管道输送工程设计核心内容之一,管道阻力特性的研究具有重要意义。

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  • All will have on the blood flow resistance, while the study found that blood circulation in the main resistance comes from a small artery, arteriole.

    所有血管血液流动都会产生阻力研究发现,血液循环阻力主要来源于动脉、微动脉。

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  • The influence of the mixed EMF and gaseous flow resistance on the experimental error in the oxygen measurement has also been discussed in this paper.

    本文讨论了混合电动势气流沿程阻力测量误差影响

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  • One of the major measures to suppress flow instability in a boiling tube consists in increasing the flow resistance at the boiling tube inlet section.

    增加沸腾入口流动阻力抑制沸腾管内流动不稳定性主要措施之一

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  • The simulation results show that the double inlet port has smaller local flow resistance and higher average velocity flow near TDC than the single one.

    结果表明进气道方案局部流动阻力,在上附近较高平均流速

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  • Experimental study on heat transfer and flow resistance of louver fins with 8 different structural parameters were carried out on a wind tunnel test rig.

    风洞试验台上8种不同结构参数百叶窗翅片进行传热流动阻力的性能试验

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  • Because of the high flow resistance and the poor flowing ability, the spool valves can't meet the requirements for high velocity or huge hydraulic equipment.

    同时由于滑阀流动阻力,通流能力小,不能满足高速大型液压设备流量要求

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  • Active water or light oil is sent downhole through hollow rod to reduce oil flow resistance, thus producing heavy oil from deep formation through screw pump.

    利用空心井筒内掺入活性降低油流阻力实现应用螺杆泵开采深层稠油

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  • The flow resistance of pile group is more complicated than that of single pile. It is difficulty to solve flow resistance of pile group theoretically at present.

    水流阻力桩的水流阻力要复杂得多,理论上解决桩群水流阻力目前还较困难

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  • The formulas of velocity distribution, flow resistance and bed load transport rate are obtained, in which the flow and sediment movement are considered simultaneously.

    本文还导得动平情况下流速分布公式阻力公式公式,使的水流运动和输沙过程得以解。

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  • In the experiment of determination of flow resistance of single phase, one of the experiments of chemical theory, there were two methods to determine the pressure drop.

    化工原理实验单相流体阻力测定实验测定方法一般两种

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  • The experiments show that microbe solution flooding can decrease the threshold pressure gradient, lessen the flow resistance, and extend the effective drainage distance.

    相比,微生物驱油降低启动压力梯度降低渗流阻力扩大有效驱动距离

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  • The heavy oil with a very deep depth has a certain flowing capacity, but it has big flow resistance through the wellbore, which causes the main difficulty of production.

    深层稠油在油藏条件下具有一定流动能力在井筒中的流动阻力很大造成生产上的困难

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  • All the phenomena show: water flow resistance is the important prerequisite to cause transpiration fluctuation, and the latter can be the result of stomatal oscillation.

    这些现象说明水流阻力蒸腾波动产生重要前提条件蒸腾波动则可能气孔开合波动直接结果

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  • All the phenomena show: water flow resistance is the important prerequisite to cause transpiration fluctuation, and the latter can be the result of stomatal oscillation.

    这些现象说明水流阻力蒸腾波动产生重要前提条件蒸腾波动则可能气孔开合波动直接结果

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