您要查找的是不是：
- DSS2 Digital Subscriber Signaling system No. 2号数字用户信令系统。
- Integrated Services Digital Network (ISDN) - Outing Call Barring (OCB) supplementary services - Digital Subscriber Signalling System No. one (DSS1) protocol - Part 1 : protocol specification. 综合业务数字网(ISDN).;短途旅游呼叫补充服务
- Digital Subscriber Signaling No. 1 1号数字用户信令系统
- digital subscriber signaling system No. 1 1号数字用户信令
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- A subscriber to a telephone party line. 对方合用电话线路的用户
- 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 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。
- reverse charge acceptance not subscribed signal 不承认被叫付费信号
- 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。
- 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。
- Who is the subscriber of that motto? 谁是那条座右铭的签字者?
- 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。
