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APCM Adaptive Pulse Code Modulation 自适应脉码调制 APCM是在PCM基础上,采用量化自适应,使均方量化误差最小的一种调制方法。 APD Avalanche Photo Diode 雪崩光电二极
Air mail, please. Postal clerk: Yes, maam? Mrs Ryefield: How much is a stamp to send a letter to France, please? Postal clerk: Air mail or surface mail? Mrs Ryefield: Air mail, please. Postal clerk: Thatll be eighty-five cents. Mrs Ryefield: Four sta
英语学习笔记: Package 包裹 Postcard 明信片 Postal clerk 邮务员 zip code 邮编 Priority mail express 优先特快件 I need to mail this packageto Florida, please. 我要把这个包裹寄到佛罗里达 How much is the postage? 请问邮
visa 签证; passport 护照; issuing country 签发护照的国家; issuance date 签照日期; expiration date 失效日期; surnames 姓; first name a middle name 名字; nationality 国籍; national identification number 身份证号
模仿句子:The ports were shut down, transport system's hit and even the postal service was interrupted as 30,000 people took to the streets protesting against austerity. 翻译:芬兰民众抗议政府的紧缩措施,举行大规模罢工,使