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- Numerical simulations demonstrate that the ARMA model provides a parsimonious, more efficient signal model for fitting seismic trace than the MA model does. 数值仿真结果表明，ARMA模型比MA模型在描述地震记录时具有参数节俭、模型更为高效的特点；
- Abstract: This Paper mainly engages in the research of the real-time efficient signal processing algorithm through detailed analyses on the characteristics of spaceborne SAR echo signals. 文摘:通过对星载合成孔径雷达（SAR）原始回波信号的分析，推导出星载SAR快视成像算法（SPECAN算法），并分析了SPECAN算法的主要难点。
- A red light is usually a signal of danger. 红灯通常是危险的信号。
- This is a highly efficient new heating system. 这是个高效的新取暖系统。
- 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。
- It is not efficient to hire poorly trained workers. 雇用未经严格训练的工人会妨碍工作效率。
- A channel over which pilot signal is transmitted. 可在其上传输导频信号的一种信道。
- He has an efficient business setup. 他有一个有效的生意机构。
- He always takes pride in his work. He's very efficient. 他总是以自己的工作而骄傲。他是个很能干的人。
- 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。
- 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。
- It is arguable that we would be just as efficient with fewer staff. 我们的职员少一些也能发挥同样效率，这是言之成理的。
