OBJECTIVE To study the the preparation chloramphenicol compound compound dros, Quality control and clinical applications.
目的：研制复方氯霉素滴眼液及质量控制与临床应用。
The experimental results indicate that dielectric-resonator oscillators ( DROs) are of such advantages as high stability of frequency, easy tuneup and low-energy consumption, which can be used in mobile communications, microwave communications and intelligent antenna, etc.
实验结果表明，介质谐振器振荡器（DRO）具有频率稳定度高、易调谐、功耗低等优点，可用于移动通信、微波通信、智能天线等系统中。
