具有最低的流阻(实际上为零)。
阀体为电抛光，表面清洁，流阻小；
The body of this valve is electro-polished, smooth, small flow resistance.
流阻小、开启力小，但在订货时，必须注明。
Flow and hinder small, open strength small, but while ordering, must indicate.
原因是油墨的流阻度过低，纸张的吸收性极强所引致。
The causes would be too low viscosity of the ink and too absorbent of the paper.
对多纵向涡对管内湍流换热和流阻特性进行了数值分析。
The characteristic of turbulent heat transfer and flow resistance with multi-longitudinal vortexes in tube is numerically analyzed.
现有扶正器有易疲劳损伤、对接不严、流阻损耗的缺点。
The current centralizer has such defects as being apt to tire and wear off, worse seal and the wasting of fluid resistance.
在第三流动区，可以近似用牛顿流体流阻方程计算流阻。
The loss in the third fluid area can be calculated approximately by the newtonian fluid pressure loss equation.
结果表明，纵助管束具有低流阻特性和较强的传热强化作用。
The heat tranfer and pressure drop performance of cross flow longitudinally finned tube banks heat exchanger are reported.
主要用于一些高压差或流阻小的工况，也可作为釜底放料阀使用。
Mainly used for high pressure or flow resistance of the working conditions, but also can be used as the bottom discharge valve.
本发明使混凝土复合管道具有高抗腐蚀性、低流阻和低制造成本。
The concrete complex pipeline of the invention has the advantages of high erosion resistance, low flow resistance and low manufacture cost.
本文理论和实验研究了通过改变回热器流阻进行直流抑制的可行性。
The possibility of utilizing regenerator flow resistance to suppress DC flow is theoretically and experimentally investigated.
孔隙率，面密度，厚度，流阻，结构因数因素综合影响其吸声系数。
Porosity, surface density, thickness, flow resistance, structure factor and other factors affect the sound absorption coefficient.
阐述了在微小流量节流器中用多孔金属材料作为流阻器所产生的效果。
The results of using porous metal for micro-flow throttle are presented.
单元模块采用重力沉降、惯性阻挡、绕流阻留、离心力等多种除尘机理。
The unit modules adopt a plurality of dedusting mechanisms, such as gravity settling, inertia blocking, flow around retaining, centrifugal force, etc.
在常压条件下，对水平钛波槽管管外凝结换热及流阻特性进行了实验研究。
Experimental investigation of heat transfer and friction characteristics was conducted on the outside of a horizontal titanium circular-grooved tube under atmospheric pressure.
气流流经散热细管的流阻较小，因此可以较好的满足通信设备的散热要求。
The flow resistance of airflow flowing through the heat dissipation thin tubes is low so as to well meet the heat dissipation requirement of the communication equipment.
结果表明，多纵向涡可明显强化管内湍流换热，其流阻增加与换热增强相当。
The results show that the multi-longitudinal vortexes could enhance the turbulent heat transfer in tube markedly and the flow resistance increase is similar to heat transfer enhancement.
应用二维场量分布进一步得到了平均磁流阻率随电流密度和温度的变化特性。
The average flux-flow resistivity depending on the average current density and temperature is also calculated with above distributions.
蝶阀在开启时蝶板与流体流向平行，流阻小，流通截面大，阀芯不易被冲刷；
When opening the valve, the valve disc is parallel with the flow direction. The flow resistance is little, the flow section is large and the core will not be eroded.
开发了一种合适的扰流件，通过实验分析了强化传热前后的传热和流阻变化。
A suitable type of disturbing device is developed and further experimental comparison is given.
流通能力大、流阻小。这是因为开启后阀芯位于藏球室内，阀体流道呈直筒式。
Flowing capability is big and the flow resistance is little. When the valve opening, the valve core is located inside ball cavity and the flow route is straight tube.
阀门在全开时，通道平滑为直线，流阻系数极小，无压力损失，可通毛球清扫管线。
When fully opened, the valve's channel is smooth and linear, with an extremely small flow resisting coefficient and no pressure loss, and the pipeline can be cleaned with hair-ball through it.
理论分析和实验测量都已表明，渐变内插管结构具有较好的消声效果和较小的流阻损失。
It shows that the gradual change structure can offer better sound reduction and smaller flow loss.
通过减小腔内回流比例、增大正反方向流阻差，提高泵液效率与输出泵压、减小输出脉动。
By reducing the reverse flow in chamber and by increasing resistance difference of back-and-forth flow, higher efficiency, higher pressure and less output fluctuation could be expected.
阀体底部设计无凹槽，球阀因此具有流阻小，阀体防止污物堆积造成阀门渗漏或损坏等特点。
The bottom of the body designed no concave nest. So have lower flowing resistance and prevent valves leakage or damage from trash pipe up.
介绍了一套阀门流量流阻系数测试装置的设计特点、工作原理、主要设备选型以及测试能力。
The design feature, work elements, the main equipment choose and test ability and so on of one test device for flux characteristics and resistance coefficient of valve were introduced.
受结构条件的限制该结构不适应做通径DN200以下阀门，原因是阀板整体结构太厚，流阻大。
Two, by the structural constraints of the structure to do the following Path DN200 valves, valve plates are the reasons for the overall structure of thick, large flow resistance.
其缺点主要是流阻系数比较大，因此造成压力损失，特别是在液压装置中，这种压力损失尤为明显。
Its shortcoming is mainly the resistance to flow coefficient is quite big, therefore creates the pressure loss, in the hydraulic unit, this pressure loss especially is specially obvious.
此外还从传热与流阻性能、传热效率、紧凑性和经济性等方面对板式换热器的整体性能进行了评价。
The bulk characteristics of the PHEw ere evaluated from heat transfer and pressure drop characteristics, heat transfer efficiency, compactness and economic characters etc.
此外还从传热与流阻性能、传热效率、紧凑性和经济性等方面对板式换热器的整体性能进行了评价。
The bulk characteristics of the PHEw ere evaluated from heat transfer and pressure drop characteristics, heat transfer efficiency, compactness and economic characters etc.
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