1、

Nu number is increased with the Ra number and radius ratio monotonously.

换热Nu随Ra和半径比的增大而上升;

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2、

the pulsating feature of the dancing droplets and droplet radius ratio of adjacent generations in the fractal model of dropwise condensation

滴状冷凝中液滴的脉动规律及分形分布模型中相邻两代液滴半径比参数

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3、

The Cause and Countermeasure of Producing Over Cut in Cutter Radius Compensation in NC Milling PORE THROAT RADIUS TO COIL GYRATION RADIUS RATIO AS CHARACTERISTIC OF ADAPTIVITY OF POLYMER MOLECULAR MASS TO CORE PERMEABILITY

数控铣削中半径补偿产生过切的原因及对策聚合物分子量与岩心渗透率配伍性&孔隙喉道半径与聚合物分子线团回旋半径比

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4、

large eddy simulation of turbulent flow in a concentric annulus with medium radius ratio

中等半径比内轴高旋圆柱间湍流场的大涡模拟

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5、

The pore structure features small pore throat radius and low height-wide ratio, and much fractal dimension, big capillary tortuosity and high pore-throat radius ratio.

孔隙结构特征表现为孔喉半径及其高宽比小,分形维数、毛细管弯曲度和孔-喉径比大。

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6、

From the solutions, results for the radiant flux leaving the base face of the cavity are presented as a function of the emittance, of the depth-radius ratio of the cavity, and of a temperature gradiant parameter.

结果表明,腔底的有效辐射是比辐射率、腔深和半径之比以及一个表示温度梯度的参数的函数。

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7、

The main dimensionless parameters that influence the homogeneity of the fluid thermal boundary conditions are Peclet number, the wall to fluid thermal conductivity ratio, the heating/ cooling length radius ratio and the wall thickness radius ratio of testing pipe.

影响这种不均匀性的主要因素是Peclet数、管壁材料的相对导热系数、实验段相对加热长度及管壁相对厚度等无量纲参数。

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8、

Using the binomial fitting method in MATLAB to program numerical calculation program, the analytical formulations between feed speed, width-radius ratio and width spread ratio were deduced.

使用MATLAB编写了数值计算程序,采用二项式拟合的数值方法,总结归纳出了进给速度和宽径比与宽展率之间的解析公式。

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9、

Parameter variations studied include nozzle diameter, nozzle number, duct radius, jet and mainstream volume flow, temperature ratio and dynamic pressure ratio.

可变的参数包括:喷嘴直径,喷嘴数,圆柱管半径,射流与主流的体积流量比、温度比和动压比。

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10、

The response spectra of absolute acceleration, lateral displacement and horizontal base sliding displacement with different values of design parameters ( mass ratio, friction coefficient and slideway radius) are calculated and plotted by two masses ′ model of superstructure-FPS and by vibration differential equations of the system.

采用上部结构-摩擦摆两质点模型并利用系统振动微分方程,计算绘制了设计参数(质量比、摩擦系数、滑道半径)不同取值下上部结构的绝对加速度、侧向位移和基底水平滑移反应谱。

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11、

According to difference of the root system morphology, low phosphorus condition made root radius and root volume reduced, while the ratio of root to shoot ( R/ S) increased.

从根系形态的差异来看,低磷胁迫下,根半径、根体积减小,根冠比增加;

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12、

Mean-Square Radius of Gy ratio n of Polydimethylsiloxane Chain

聚二甲基硅氧烷链的均方迥转半径

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13、

Urban forest accessibility in Shenyang is low. For the criterion that an urban forest has a service radius of 1 kilometer, the values of service area ratio and service people ratio are low, only 27.42% and 57.35% respectively.

沈阳城市森林可达性较差,对1km服务半径标准,城市森林游憩服务面积比和服务人口比均较低,分别为27.42%和57.35%。

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14、

ratio of crank radius to length of connecting rod

连杆比——曲柄半径与连杆长度之比值

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15、

preparation and application of high radius-thickness ratio micaceous iron oxide

高径厚比云母氧化铁的研制及其应用研究

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16、

Pore radius, pore density and pore-throat ratio influence reservoir permeability to different extents.

孔隙半径 、 孔隙密度和孔喉比对地层渗透率均产生影响.

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18、

The real shear rate makes up only about 35 per cent of the total apparent shear rate when shear rate is higher and capillary ratio of length to radius is lower. It shows clearly that the end correction is necessary when rheology parameters are discussed.

当切变速率较高,毛细管长径比较小时,真实剪切应力仅占表观剪切应力的35%左右,证明了毛细管流动末端校正的必要性。

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19、

The radius compression ratio derived from the images was about 3, the compression symmetry was very good, and the three dimensional image of the capsule was reconstructed.

采用三个方位的针孔相机对爆推爆靶内爆压缩过程进行成像,同时成功地获得了三个针孔图像,得到的直径压缩比约为3,且压缩的对称性很好;

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20、
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