The improvement of transmitters and recording devices has gone hand in hand with the development of rockets . 目前各种发射机和记录装置与火箭的研制一起得到了改进。
She had no doubt he would come after her; he knew as well as she did that there was a wireless transmitter in tom's cottage . 她知道他一定会跟上来的，因为他也和她一样明白，汤姆处有一架发报机。
The transmitter sends out short intense bursts or pulses of energy with a relatively long interval between pulses . 发射机发出的是短促而又强烈的，具有相当长的时间间隔的能量“突发”即能量脉冲。
Most inventions basic to the construction of radio transmitters and receivers had been perfected before the first world war . 为建造无线电发射机和接收机奠定基础的大多数发明，在第一次世界大战前就臻于完善。
Most inventions basic to the construction of radio transmitters and receivers have been perfected before the first world war . 为建造无线电发射机和接收机奠立基础的大多数发明，在第一次世界大战前就臻于完善。
Verification regulation of pressure differential transmitter 差压变送器检定规程
Wide plus k series universal pressure transmitter Wide plus - k系列通用压力变送器
Grading standard of quanlity for television transmitters 电视发射机质量分等标准
