In semiconductor receivers transistors take the place of vacuum tubes.在半导体收音机中晶体管代替了真空管.We often turn to this handbook for information on transistors.我们常从这本手册查阅有关晶体管的资料.The transformer isolates the transistors with regar...
In order to ensure the safety of ship chamber, the anticollision measures should be set.在船进出升船机船厢过程中, 需要设置防撞措施来保证安全.The computed results of the elastic and elastoplastic dynamic response of anticollision beam system are ...