| 1. | Such members are much more flexible in torsion than those with a solid section .
这样的杆件在扭转时比实心截面的杆件柔得多。 |
| 2. | The casting shown in section fig 1-138 has its center of gravity located as shown .
图1138所示截面的铸体，其重心如图所示位置。 |
| 3. | The microwave receiving area of an electronic system
电子系统微波接收截面的研究 |
| 4. | The differential cross sections for at intermediate energies
三重微分散射截面的计算 |
| 5. | Optimization design of cross section of rc frame beam
钢筋混凝土框架梁截面的优化确定 |
| 6. | Determination of isothermal sections of the ni - ta - hf ternary system
三元系等温截面的研究 |
| 7. | Pressure vessels of noncircular cross section
非圆形横截面的压力容器 |
| 8. | Measurement of l - shell ionization cross sections for silver by electron impact
壳层电离截面的测量 |
| 9. | ( 7 ) the cross - section has significant effects on the secondary flow
门）截面的形状对二次流动的结构影响明显。 |
