查询词典 control unit

unit step function：阶梯函数

"单元记录机","unit record machine" | "阶梯函数","unit step function" | "单元测试","unit testing"

unit step function：单位阶函数

unit process 单元程序 | unit step function 单位阶函数 | unit vector 单位向量

Having Good Table Manners：用餐礼仪

Unit 21 餐厅订位 Making Reservations | Unit 22 用餐礼仪 Having Good Table Manners | Unit 23 特殊点餐需求 Eating on special Diets

Unit Tewlve：谈论天气

Unit Eleven 表示感情 | Unit Tewlve 谈论天气 | Unit Thirteen 购物

Thank-you Letters：感谢信函

Unit 15:定单事宜 Letters Dealing with Orders | Unit 16:读者致函 Letters to the Editor | Unit 17:感谢信函 Thank You Letters

Unit 5 SEFC B2A The British Isles：第27节

第26节 Unit 4 SEFC B2A A garden of poems | 第27节 Unit 5 SEFC B2A The British Isles | 第28节 Unit 6 SEFC B2A Life in the Future

At the Customs：机场通关

Unit 3 飞机旅程 Air Travel | Unit 4 机场通关 At the Customs | Unit 5 宾馆住宿 At the Hotel

Complimenting the Staff：夸奖员工

Unit 42 相互帮助 Offering Help | Unit 43 夸奖员工 Complimenting the Staff | Unit 44 表示祝贺 Expressing Congratulations

Complimenting the Staff：肆叁 夸奖员工

Unit 肆贰 相互帮助 Offering Help | Unit 肆叁 夸奖员工 Complimenting the Staff | Unit 肆肆 表示祝贺 Expressing Congratulations

Complimenting the Staff：嘉奖员工

Unit 42 彼此帮助 Offering Help | Unit 43 嘉奖员工 Complimenting the Staff | Unit 44 暗示祝贺 Expressing Congratulations

air ventilator：通风管

air purifier 空气滤清剂 | air ventilator 通风管 | air-bleed 空气分泄器

sound motion picture, talkie：有声电影

silent cinema, silent films 无声电影 | sound motion picture, talkie 有声电影 | cinemascope, CinemaScope 西涅玛斯科普型立体声宽银幕电影,变 形镜头式宽银幕电影