| 1. | Study of u shaped girder with pre - cast main beam and cast in - situ slab 预制主梁现浇道床板的槽形梁研究 |
| 2. | Testing study of bearing behavior for main beam model of cable - stayed bridge 斜拉桥主梁模型承载性能试验研究 |
| 3. | Welding workmanship for big type movable model for main beam manufacture of bridge girder erection machine 75节段拼装式架桥机液压系统设计实践 |
| 4. | Luminaire designed to be suspended from a cable with its main beam axis at right angles to the axis of the road 利用电缆进行悬挂的灯具,其主光轴与道路主轴成直角。 |
| 5. | Arrangement of road - lighting luminaires suspended with their main beam axes at right angles to the road axis 灯具在横跨电线的方向上被悬挂于车道之上的道路照明布灯方式。 |
| 6. | Switching on your headlamp will help other road users including pedestrians to see you coming ; if necessary flash your main beam 大灯亮著,其他道路使用者包括行人便容易看见你。如有需要,可闪动大灯。 |
| 7. | The result demonstrates that the variable phase center of fish antenna is much more steady than the lpda in the main beam 计算结果表明鱼骨天线在主波束相当宽的范围内,其可变相位中心的稳定度要优于对数周期偶极子天线。 |
| 8. | So the circumjacent welding should be applied at this spot and another join symmetrical to it , all sides of the place at which angle iron join are welded around with the main beam 因此应该在该位置以及与之对称的另一联接点处都应采用周边焊,使角钢连接处的各边全部焊接,然后再与大梁周边焊接。 |
| 9. | In the chapter , we are also presented a low sidelobe beamforming synthesis technique . the main beam is pointed in the proper direction by choosing the steering vector for that direction 为了获得自适应优化权向量,形成任意的旁瓣电平波形,即使在旁瓣区域干扰很强时,也能保证有很好的方向图输出。 |
| 10. | Noise and interference are inevitable in radar channel . they enter the received system through side or main beams , and reduce the system ’ s receiving signal - to - noise ratio ( snr ) 在雷达信道中,不可避免地存在着噪声和干扰,它们通过天线方向图的边波束或主波束进入接收系统,从而降低系统的接收信噪比。 |