电磁波是由一种称为速调管的微波电子管产生的.The electronmagnetic wave is produced by microwave tubes called klystrons.这些工厂生产电子管 、 晶体管 、 收音机和电视机.These factories produce tubes, transistors, radio sets and TV sets.这些放大器是用微型电子管制成的.These amplifier...
若IBM公司和苹果公司联手将会有什么效果呢？What will be the effect of the alliance between IBM and Apple?调整天线的位置和方向以达到最佳接收效果。Adjust the aerial's position and direction for the best reception.如果你对修理效果不满意，可以再找他们投诉。If you are not happy abo...
In printing, a duplicate letterpress plate made from an original by electroplating.在印刷技术中, 一种用电镀方法从原版复制成的印刷版.Positive line work and letterpress must be opaque.阳像线划原图和注记必须是不透明的.Furniture: Letterpress spacing materials use...