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- Air freight and air mail must pass through safety inspection and other safety measures set by the State. 航空货物、航空邮件应当经过安全检查或者对其采取国家规定的其他安全措施。
- Telegraph Distortion Measurement Set 电报失真测量装置
- Design and Test of Radio Celestial Body Angle Measurement Set 天体角度射电测量装置的设计与试验
- electronic energy measurement sets 电能计量装置
- noise-figure measuring set for microwave equipment 微波噪声系数测试仪
- Measurable Function and Zero Measure Set 可测函数与零测度集
- Scientific measurement of the head. 头测量学,头测量学,测颅学头颅的科学测量
- Measurement of the depth of large bodies of water. 海洋测深学,海洋测深术测量大水域的深度
- Several Properties on Jordan Measurable Set 可求积集的若干性质
- The scientific measurement of time. 计时学时间的科学测量
- The Development of Can Vacuum Measuring Set 罐头真空检测仪的研制
- microwave characteristics measuring set 微波特性测试仪
- A standard of measurement or judgment; a criterion. 标准测量或判断的标谁; 标准
- underwater sound integrated measuring set 水声综合测量仪
- microwave characteristics measurment set 微波特性测试仪
- The overall measurement of this room is 80 square meters. 这个屋子的总面积是80平方米。
- When did the first measurement of the speed of sound take? 第一次测量声速是在什么时候?
- harmonic distortion measuring set 谐波失真测量设备
- light source moniter and measuring set 光源监视测量装置
- interchannel level measuring set 路际电平测量仪