class n. 1.阶级;社会等级。 2.学级;班级,年级,级,班;组;(有组织的)讲习班;〔美国〕同年毕业班;【军事】同年入伍士兵。 3.(高低、优劣的)等级;类别。 4.〔英大学〕(荣誉考试)优等;〔俚语〕高级,优秀;漂亮,优雅。 5.【生物学】(分类学的)纲;【矿物】晶族。 6.(一节)课。 the working class工人阶级。 No class today. 今天没课。 C- is over. 下课。 boycott classes 罢课。 the first [second] class头[二]等。 high [low] class高[低]级。 There's a good deal of class about him. 他有很多优点。 He is not class enough. 他没有什么了不起。 at the top of one's class 出类拔萃;居首要位置。 be no class 〔俚语〕不足道;无价值。 class of the field 〔美国〕比赛的优胜候补人。 get a class=obtain a class. in a class by itself 特好,出众。 in class在上课中。 in the same class 〔美国〕同一类型的,同等的。 no class 〔俚语〕等外的,极坏的,蹩脚的〔用作表语〕。 not in the same class with 不能同…相比,无法和…相提并论,比不上…。 obtain a class=take a class 毕业考试得优等。 take a class at (Oxford) 在(牛津大学)进荣誉班。 take a class of (beginners) 担任(初级)班(的教师)。 take classes in (history) 听(历史)课,选修(历史)课程。 the classes 上层社会;知识阶级。 the classes and masses 各阶级和各阶层。 vt. 把…分类,把…分等[分级];给…定等级,把…分组。 vi. 属于…类[等、级、组]。 adj. -able 可分类[等级]的。 adj. -less 无阶级的。
The symbols used to designate the classes of emission have the meanings assigned to them in the telecommunication convention 用以指定发射类别的符号具有电信公约给予该等符号的涵义。
Methods of measurement on radio receivers for various classes of emission ; part 6 : general purpose communication receivers 各种发射类别的无线电接收机的测量方法.第6部分:一般通信接收机
Methods of measurement on radio receivers for various classes of emission - receivers for frequency - modulated sound broadcasting emissions 各种发射级别的无线电接收机的测量方法.调频声音广播发射接收机
Methods of measurement on radio receivers for various classes of emission - methods of measurement on digital satellite radio receivers 各种类发射的无线电接收机测量方法.第7部分:数字卫星接收机测量方法
Methods of measurement on radio receivers for various classes of emission - part 6 : general purpose communication receivers iec 60315 - 6 : 1991 corr . : 1997 各种发射类别的无线电接收机的测量方法.第6部分:通用
Dsr methods of measurement on radio receivers for various classes of emission . part 7 : methods of measurement on digital satellite radio receivers 各种发射等级用无线电接收机的测量方法.第7部分:数字卫星无线电
Methods of measurement on radio receivers for various classes of emission - measurement of the characteristics relevant to radio data system reception 各类发射的无线电接收机测量方法.无线电数据系统接收特性测试
Methods of measurement on radio receivers for various classes of emission ; part 3 : receivers for amplitude - modulated sound - broadcasting emissions 各种发射类别的无线电接收机的测量方法.第3部分:调幅广播发射接收机
Methods of measurement on radio receivers for various classes of emission . part 4 : receivers for frequency - modulated sound broadcasting emissions 各种发射分级用无线电接收机的测量方法.第4部分:调频声广播发射用接收机
Methods of measurement on radio receivers for various classes of emission - part 3 : receivers for amplitude - modulated sound - broadcasting emissions 各种发射类别的无线电接收机的测量方法.第3部分:调幅声音广播发射接射机