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- A new envelope demodulation method based on empirical mode decomposition (EMD) is proposed to make up the limitation that meaningless frequencies often arise in the envelope spectrum of conventional envelope demodulation method. 摘要提出了一种新的调制信号解调分析技术，来抑制传统的包络解调方法中经常出现的无意义的频率成分。
- Have you stuck down the back of the envelope? 信封背面开口处贴牢了吗？
- He steamed the stamp off the envelope. 他用蒸汽把信封上的邮票揭下来。
- He glued a stamp onto the envelope. 他把邮票贴在信封上。
- As he picked up the envelope, a key dropped out. 他拣起信封时，一把钥匙掉了出来。
- As she picked up the envelope, a key dropped out. 她拾起信封时，一把钥匙掉了出来。
- Put a stamp on the envelope, will you? 在信封上贴张邮票，好吗？
- He stuck a stamp on the envelope. 他在信封上贴上邮票。
- She opened the envelope with her fingertips. 她用指尖弄开了信封。
- The envelope's seal was torn open. 信封封缄被撕开了。
- The (flap of the) envelope was unstuck. 信封(的封口)没粘住。
- practical envelope demodulator 实际包络线解调器
- There are several enclosures in the envelope. 信封内装有几份附件。
- envelope demodulator 包络解调器
- An envelope or wrapper for mail. 封套，信封为邮寄而制的信封或封套
- A good way to remove a stamp from an envelope is to soak it off. 从信封上取下邮票的一个好办法就是用水把它泡下来。
- I enclose a stamped addressed envelope for your reply. 兹附上贴有邮票并写好地址的回邮信封。
- He ripped off one end of the envelope and pulled out the letter. 他撕开信封的一端，抽出里面的信件。
- It's the combination of modulator and demodulator. 调制解调器是由调制器和解调器组成。
- A paper or thin cardboard envelope for a phonograph record. 唱片套子留声机唱片的纸套或薄纸板封套
