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- The main purpose is to study further in the constant envelope and Quasi-constant envelope modulations with high modulation efficiency. 主要研究适合深空信道传输的具有恒定或准恒定包络的高效数字调制方式与直接序列扩频相结合的组合调制解调方式。
- Carrier Envelope Modulation ( CEM ) 载波包络调制
- We use simulation and measurement to verify the LINC transmitter superior to a single Class-A power amplifier on both linearity and efficiency when a variable envelope modulated signal is used. 我们也使用模拟以及实作量测去验证当时变振福的调变讯号被发送时,LINC发射器可以在线性度和效率上优于单一个A类线性功率放大器。
- 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。
- UWB Carrier Envelope Modulation and Orthogonal Comb Spectrum Correlation Demodulation 超宽带载波包络调制及其频谱相关解调
- 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。
- There are several enclosures in the envelope. 信封内装有几份附件。
- 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。
- 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
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries