包括磁带驱动器 、 磁头和相应控制器的一种装置.A device containing a tape drive, magnetic head, and associated controls.程序控制器是色谱仪的关键部件.The programmer forms the heart of the process chromatograph.一种含有三个离散输出值的多位置控制器.A multiple - position control...
Brush your teeth or dentures after meals and before bedtime.─进食后和就寝前请刷牙或刷洗假牙.Dentures require a strong fixative.粘假牙需用强力固定剂.Human jaws are called edentulous jaws when all teeth and to replaced by full dentures.人类的上下颌牙齿全部缺...