equivalent diameter
英 [ɪˈkwɪvələnt daɪˈæmɪtə(r)]
美 [ɪˈkwɪvələnt daɪˈæmɪtər]
当量直径
双语例句
- Smith ( 1962) considered three alternate methods to determine an equivalent diameter of graded sediment.
史密斯（1962）提出了三种不同方法以计算不均匀沙的当量直径。 - About the Characteristic Dimentions and the Equivalent Diameter in the Calculation of Resistance and Heat Transfer of Fluid Flow in Ducts with complicated Geometry
关于流动阻力与换热计算中的定性尺寸与当量直径 - The utility model provides a turn-over device of engine cylinder, which includes two concentric annular dials to form a fixed framework with equivalent diameter;
本实用新型提供一种发动机气缸体翻转装置，包括两个形成固定框架且外径相等的同心圆形转盘； - The result obtained shows that with three unequal-diameter nozzles, two nozzles or single nozzle being used, the value of the hydraulic side force on the bit is mainly dependent on the flow rate, the mud weight and the equivalent diameter of nozzles.
研究表明，当采用不等径三喷嘴、组合双喷嘴和单侧喷嘴时，钻头上水力侧向力的大小主要与排量、泥浆比重和喷嘴的当量直径有关。 - The equivalent diameter of structure cell also increases with increment of consolidation pressure.
结构单元体等效直径也随固结压力的增加而增大。 - Theoretical research on equivalent diameter and oscillation frequency of miniature regenerator
微型回热器等效直径与振荡频率的理论研究 - The technology of image analysis is applied to measure the equivalent diameter and grain size distribution of six soil samples. The fractal dimension characterized by grain size distribution is obtained accordingly.
应用计算机图像分析技术，对6个典型土样测定土壤颗粒的等效直径和分布规律，给出用粒径的数量分布表征的土壤分形维数。 - -This paper analyses the edge effect in the measurement of dielectric properties at radio frequency. A concept of equivalent diameter of specimen is introduced to calculate the dielectric constant of unknown specimens with different diameters.
本文分析了高频介质特性测量中的边缘效应，引入样品等效直径的概念来计算不同直径的被测样品的介电常数，给出了实验结果。 - A new equivalent diameter and equivalent velocity based on momentum conservation were proposed.
基于动量守恒原理，提出了考虑径向流动和密度差别的同轴交叉射流的当量直径和当量速度。 - A size selection test was made of the cone angle of the small cone tubes, of the diameter of the overflow mouth, of the length of the underflow straight pipe, of the equivalent diameter of the inlet using particle efficiency in an indoor simulation test apparatus.
在室内模拟实验装置上，采用粒级效率进行了旋流器的小锥管锥角、溢流口直径、底流口直径、底流直管段长度和入口当量直径等尺寸筛选实验。 - From several aspects of plastic drainage boards such as equivalent diameter, well resistance, smear effect and sand mat and so on, authors conclude some domestic and foreign scholars 'opinions that these factors can influence treatment effect of plastic drainage boards.
从塑料排水板的等效直径、井阻作用、涂抹作用及砂垫层的作用几个方面，总结了国内外学者认为这些因素对塑料排水板处理效果产生影响的观点和看法。 - The applicable range, defect and correction of equivalent diameter used hydraulic diameter
水力直径作为当量直径的适用范围、缺欠与修正 - The paper briefly introduced cutting downslide velocity calculation, computing method and theoretical basis for lagged time, and value picking method for cutting equivalent diameter.
简介了岩屑下滑速度的计算及滞后时间计算方法以及理论依据，简介了岩屑等效直径的取值方法。 - The dimension of shaped spinneret was designed and calculated by equivalent diameter analysis.
采用当量直径法对异形喷丝板的尺寸进行设计、计算。 - Morphology and size of the microstructure in semi-solid forming were quantitatively examined by shape factor and equivalent diameter of primary α phase and the measured data were listed.
用初生α相的形状系数和等效直径定量描述半固态组织的形貌和尺寸，给出了测定数据。 - Calculation to the Equivalent Diameter in Mine Ventilation
矿井通风中的当量直径计算问题 - Influence of grain equivalent diameter on cutting lagged time and correction
颗粒等效直径对岩屑迟到时间的影响和校正 - Through examples, the paper analyzed and demonstrated that by making use of cutting equivalent diameter calculating downslide velocity, the accurate correction can be taken to cutting lagged time.
通过实例，分析论证了可以用岩屑等效直径计算下滑速度，对岩屑迟到时间进行精确校正。 - The paper studied the conversion of flux and flowing speed equivalent diameter's friction resistance of unit length in rectangular pipeline, which had been adopted in design calculation of hydromechanics.
就我国现行的、在流体力学设计计算中通常采用的流速当量直径及流量当量直径，在矩形管道单位长度摩擦阻力的换算进行研究。 - The six solidified structures with different semisolid slurry temperature were obtained through the changing of pouring temperature and cooling-body gradient respectively, and the changing characteristics of the shape factor and equivalent diameter of initial carbides were quantitatively Analyzed via Leica image analyzer.
通过分别改变浇注温度、冷却体斜度获得六组不同半固态浆料温度的凝固组织，并借助Leica图像分析仪分别定量分析了初生碳化物的形状系数和等效直径变化特征。 - It's concluded for rectangular pipeline in the same design condition, while searching for friction resistance of unit length of rectangular pipeline in linear diagraph by adopting flux and flowing speed equivalent diameter, obtained results are different.
结果表明，对于同一设计条件下的矩形管道，当分别采用流速当量直径和流量当量直径在管道单位长度摩擦阻力线算图中查找矩形管道单位长度摩擦阻力时，所得结论并不相等。 - The formula calculating the equivalent diameter of torsional stiffness for domestic turbogenerator rotor is presented, and the modelling of some special structures on the rotor is discussed as well.
针对国产发电机的具体特点，本文首次给出了计算大型发电机转子本体部分扭转等效直径的公式，此外，还对转子上其他一些结构的模化作了探讨。 - The reactor core is put on the bottom of a large and deep pool with activity zone of 110 cm in height and 174 cm in equivalent diameter.
反应堆堆芯放置在一个大而深的水池底部，其活性区高为110cm，当量直径为174cm。 - By quoting "sphere coefficient", author found a method to calculate the equivalent diameter of fiber particle.
作者通过引入球形度，找到了当量直径的计算方法； - The results showed that the length of two phase flow regime was influenced by the surface tension, the gas flow rate and equivalent diameter of flow channel.
结果表明，两相区长度受表面张力，气相主流速度和流道当量尺寸影响。 - In this research, the author got the relationships of Critical dimension of poplar dying, the length of wood, equivalent diameter, drying temperature, pressure and so on. ( 3) Determination the poplar temperature and humidity field characteristic of vacuum superheat steam.
对杨木在真空过热蒸汽干燥状态下的临界尺寸问题进行系统研究。研究表明：杨木真空干燥临界尺寸的大小与木材的长度、当量直径、干燥温度、环境压力等因素有关。 - Through making simulation for experimental findings, coefficient of friction and Nu formula of the fluid in ring space is fitted. The inaccuracy of adopting equivalent diameter method is analyzed.
通过对实验数据的数值模拟，拟合得到环空间的摩擦系数公式与努赛尔数，分析了采用当量直径计算时的不准确性。