This paper reports a 31 bit low frequency SAW programmable tapped delay line. It is a key device in signal processing of interference freespread spectrum communication system.
文章报道的31位声表面波低频可程序抽头延迟线是一种用于扩频抗干扰通信系统所用的关键信号处理器件。
2
The size of the shrubs has increased and shrub cover has spread to what was previously shrub-free tundra.
灌木的大小增加了，以及灌木的覆盖范围扩展到以前没有灌木的苔原上。
3
Simple acts of kindness like a free haircut will spread.