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- signal sighting apparatus 信号瞄准器
- An indicator or a sighting apparatus on a plane table, used in angular measurement. 旋标装置飞机控制板上的指示器或观测仪，用来测量角度
- An indicator or a sighting apparatus on a plane table,used in angular measurement. 旋标装置飞机控制板上的指示器或观测仪，用来测量角度。
- An indicatoror a sighting apparatus on a plane table, used in angular measurement. 旋标装置飞机控制板上的指示器或观测仪,用来测量角度。
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- An indicator or a sighting apparatus on a plane table, used in angular measurement 旋标装置飞机控制板上的指示器或观测仪，用来测量角度
- I stood watching for the signal to change to green. 我站着等待交通信号转为绿灯。
- Let's set the clock by the radio time signal. 咱们照着收音机的报时信号把钟对一对。
- A strong signal radiation apparatus. 具有强大的信号辐射器具。
- A red lamp is often a danger signal. 红灯常常是危险的信号。
- A reflected signal on a communication channel. 一种在通信信道上反射回来的信号。
- The rise in prices was a signal for rebellion. 物价上涨引起了叛乱。
- A channel over which pilot signal is transmitted. 可在其上传输导频信号的一种信道。
- The signal was picked up by a downrange radar station. 该信号被试验飞行方向之内的雷达站收到了。
- Gun Sighting Apparatus 火炮瞄准装置
- The driver is winking his lights to signal a turn. 驾驶员打着一闪一闪的灯光信号表示要转弯。
- Everyone uncovered when the signal sounded. 信号响时，人人脱帽致敬。
- The train must stop when the signal's red. 信号机是红色时,火车必须停驶。
- A red lamp is used as a danger signal. 红灯用作危险信号。
- Send out a distress signal; the ship is sinking. 船正在下沉，发遇险信号吧。
