您要查找的是不是：
- beam aerial system 定向天线系统
- Scanning in declination may be achieved by tilting the aerial system. 进行赤纬扫描时，可以把天线倾斜。
- As the F-22 Raptor, F-35 Lightning II, unmanned aerial systems, and future aircraft platforms are fielded over the next decade, the team believes an advanced multi-role weapon requirement will emerge. F-22猛禽、F-35闪电II、无人飞行系统和未来飞机平台都是未来十年的研究领域，该团队相信，对先进多用途武器的需求将逐步显现。
- beam reflector aerial system 定向反射天线系统
- The birds perched on the television aerial. 鸟停在电视天线上。
- The picture is much clearer with the new aerial. 装上新天线后画面清晰多了。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
- 46. Scanning in declination may be achieved by tilting the aerial system . 进行赤纬扫描时，可以把天线倾斜。
- The beam of the searchlight pierced the darkness. 探照灯的光柱射入黑暗中。
- He showed me some aerial photographs. 他给我看了一些空中拍摄的照片。
- I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
- His answer was right on the beam. 他的答案完全正确。
- The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
- Reception range of communal aerial system 公共天线系统接收范围
- Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
- Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
- The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
- He struck the beam with his head. 他的头撞到梁上了。
- The beam has a thickness of 3 inches. 这根梁厚3英寸。
- The drainage system has been aged. 排水系统已经老化了。
