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- upper sideband up converter 上边带上变频器
- The design of hardware module includes A/D converter, DDC (Digital Down Converter), DUC(Digital Up Converter) and DSP. The design and application of AD6640 and AD6624 are fully discussed in this part. 收发信机硬件设计主要包括：A/D、D/A转换器、数字下变频器(DDC)、数字上变频器(DUC)以及DSP，论文详尽介绍了A/D器件AD6640、DDC器件AD6624和DSP器件TMS320C5410的设计和应用；
- The Up converter receives at its input the IF signal coming from the modulator and converts it on the RF transmission channel. 上转换器在它的来自调节器的输入IF信号上接收和在射频传输频道上转换。
- Mark at the lower end needed to be leveled up. 低分的一端分数需往上提。
- Marks at the lower end need to be levelled up. 低分的一端分数需往上提。
- Design and Implementation of Digital Up Converter for Homenet 一种数字中频上变频器的设计与实现
- Sherman recommended that Clarke be disciplined, but higher-ups rejected the idea. 谢尔曼建议对克拉克进行纪律惩戒，但高层拒绝了这个意见。
- You'll need to change into a lower gear when going up this hill. 上这座山时得换低挡。
- Unwaged members pay a lower entrance fee. 无固定收入的人入场费从优。
- If it does end up converting its bonds and taking an 18% stake in Rio, Chinalco's presence will present a poison pill to any potential acquirer: Strike one for Rio's minority shareholders. 如果中国铝业公司最终将债券转换为股份，持有力拓18%25的股权，那么中国铝业公司就有实力对任何潜在收购方实施毒丸：这会是对力拓少数股东的第一个打击。
- A man's voice is usually lower than a woman's. 男子的嗓音通常比女子的低。
- The little boy used to push out his lower lip. 那个小孩以前老要撅起下嘴唇。
- Tom was lying on the lower bunk. 汤姆躺在下铺。
- Any chance of a lower price from you? 你能不能要价低一点？
- The lower hem of his new overcoat rucked up. 他的新大衣的下摆起皱了。
- Speak to her? I'd never lower myself. 跟她说话？我可不自贬人格。
- Don't lower yourself by asking him for help. 不要向他求助以免降低身分。
- Kept the thermostat lower to conserve energy. 减少自动调温机的使用以节约能源
- The judge upheld the lower court's decision. 法官维持初级法院的判决。
- Holiday prices are lower out of season. 在度假淡季，度假费用较低。
