大家都搜：
信封同步
1、diffraction envelope───衍射包络
2、sealed envelope───密封的信封
3、fertilization envelope───受精囊
4、pushing the envelope───挑战极限；接近甚至超越安全限度；越过底线
5、envelope sizes───信封尺寸
6、red envelope───n.红包
7、envelope───n.信封，封皮；包膜；[天]包层；包迹
8、envelope dl───信封dl
9、prc envelope───中华人民共和国信封
1、synchronous capture method of adaptation filter and related synchronous envelope tracking circle were applied to achieve synchronization of PN by receiver.───接收机采用了匹配滤波器同步捕获法和包络相关同步跟踪环来实现伪码(PN)的同步。
2、In the troposcatter communication at low rate or medium rate, a bit synchronization used by modem is usually extracted from the envelope that contains synchronization information.───在中低速散射通信中，调制解调器的位同步信号通常从含有同步信息的包络中提取。