15.The structure,the linking method and the working principle of the automatic measurement system for semiconductor photovoltage spectrum have been reported.
16.Dodecanol abietate succinic anhydride was synthesized from abietic acid.The structures of products were characterized by spectrum of IR,HNMR and MS.
17.Quinolone is known as broad antibacterial spectrum,high potency,no crossing drugresistance with other antibacterial drugs,and easy and low cost to administer.
19.The principle of secondary spectrum is introduced and the equations of designing apochromatism objective lens based on wave aberration are presented.
20.Using a potential model with relativistic correction we evaluated the spectrum, le-pton decay widths and radiative transition widths of heavy quarkonium systems.