最后，进行了控制方截面管中(0,0)次波(平面波)和(1,0)次波的实验。
At last, the experiments are carried out for active control of (0, 0) mode and (1, 0) mode in the square duct.
最后用方截面管流中有关二次流的实验结果对模型进行鉴定。 结果表明，给出的模型在槽道流动和方截面管流中都获得了满意的结果。
Then the normal Reynolds stresses in square duct flow are calculated using the new model and coefficient functions, the results are consistent with the experimental data.
那么横截面就等于,8乘以10的,负五次方平方米。
That would give me a cross-sectional area of eight times ten to the minus five square meters.
垂直加劲肋节点适用于柱截面较小的方钢管(矩形管)柱和H型钢梁节点。
A vertical stiffening rib joint is suitable for rectangular steel tube column with smaller section to H-beam connection.
使用AISI 4145 H合金钢制造。方钻杆的末端和驱动截面和接头都符合API规范。
Kellies are made of AISI4145H alloy steel. The ends, driving sections and joints are produced and tested according to API specification.
圆管或方管内填充另一种工程材料构成的组合截面构件(如钢管混凝土)在工程结构中得到了广泛的应用。
Combined section columns which are made of a circular or a square tube filled with another material are used widely in engineering structures, such as concrete filled tube.
微分散射截面的变化主要依赖于相对介电常数实部、虚部数值较大的一方，并且随粒子取向角的增大而增大。
The variation of DSCS depends on the larger part between real part and imaginary part of dielectric coefficient. The DSCS and azimuth angle are in proportional relation.
提出了一种通过测量方坯截面面积在线计算方坯质量的方法，通过该方法可以实现方坯的定重剪切。
A new on-line calculation method for billet weight by measuring its cross section was presented, and cut-by-weight of billets could be realized by this method.
断面几何特征具有各向异性，单一方向的二维截面分析难以全面描述复杂的断裂表面。
The geometric topography of fracture surface was found to be anisotropic, and it will be not adequate to describe the complex fracture surface with only one single cross section.
垂直加劲肋节点适于柱截面较小的方钢管(矩形管)柱和H型钢梁节点。
The vertical stiffener connection is suitable for rectangular steel tube column that the sectional area is smaller and H-steel beam connections.
入口截面不消耗剪切功率，然后用上界定理与曲面积分方法首次得到了用余弦模拉拔方棒时变形力的解析解。
Then with the upper-bound theorem and the surface integral an analytical solution of the drawing stress was first obtained.
本文用切条法测定焊接方管截面的残余应力，并对其数据进行了统计分析。
Residual - stress in welded square tube is measured by the sectioning method. And the statistical analysis of its data is made.
即利用旋转四方柱子，改变波散射截面的大小，从而实现能带和波传播方向的调节。
In other words, the rotation of the square rods varies the area of the scattering sections, so that the band structures and the propagation directions of acoustic waves can be controlled.
在方坯横截面上，铸坯表面中心和角部的收缩量明显大于偏角部。
In the cross section of square billet, the shrinkage values in the center of billet surface and billet corner are obviously bigger than that in the off-corner.
阿加特设计局声称这种导引头可以有效地在超过13公里的距离上对付雷达截面积在5平方米的目标。
AGAT claims that it is effective at ranges of up to 13 km against a target with a 5 m2 radar cross-section.
本发明涉及一种雷达遥感技术，特别是一种获得雷达截面积的方法。
The invention relates to radar remote sensing technology, in particular to a method for acquiring the cross section of radar.
流变振动仪利用等截面杆的纵向简谐振动来测定材料的阻尼，十分方便和有效。
This paper presents a simple method for measuring gas adiabatic constant by use of simple harmonic oscillation.
流变振动仪利用等截面杆的纵向简谐振动来测定材料的阻尼，十分方便和有效。
This paper presents a simple method for measuring gas adiabatic constant by use of simple harmonic oscillation.
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