您要查找的是不是：
- DM secondary signals 次DM信号
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- Signals control each section of the railway track. 各种信号控制着铁路轨道的每个部分。
- Her age is of secondary interest. 她的年龄不太重要。
- 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 period signals the end of a sentence. 句号表示一个句子结束了。
- In secondary school, children get more advanced knowledge. 在中学，孩子获得更深一些的知识。
- A red lamp is often a danger signal. 红灯常常是危险的信号。
- A secondary matter; a side issue. 次要的第二位的事; 较次要的问题
- A reflected signal on a communication channel. 一种在通信信道上反射回来的信号。
- The lighthouse flashes signals twice a minute. 灯塔每一分钟发出两次信号。
- The rise in prices was a signal for rebellion. 物价上涨引起了叛乱。
- The ship's radio sent out signals for help. 轮船上的无线电发出求助信号。
- A secondary mine passageway between two main shafts or tunnels. 次要矿山甬道矿井中连接两条大隧道的小巷道
- We prefer payment in US or DM as a rule. 一般说来，我们更喜欢客户用美元或德国马克付款。
- The signals go to and fro at a very high but almost constant speed. 那些信号用非常快但几乎不变的速度来回传送。
- The government introduced universal secondary education years ago. 几年前，政府就倡导普及中等教育。
- A channel over which pilot signal is transmitted. 可在其上传输导频信号的一种信道。
- The DM client will change little. DM客户端有稍许变化。
