精品无码久久久久久久久vr,2020最新国自产拍视频网站,JULIA无码人妻中文字幕在线种子,中国少妇内射xxxx狠干,久久亚洲男人第一AV网站

WELCOME TO WUXI CITY HUIFENG ELECTRONIC.CO.LTD!
National Consultative Hotline 0510-85310683

PRODUCT CENTER

Basic properties of dielectric ceramics

Pbulish:admin  time:2018年08Month03Day

Microwave dielectric ceramics (MWDC) is a kind of ceramic which is used as a dielectric material and performs a variety of functions in the microwave frequency band (mainly UHF, SHF band, 300MHz~300GHz). It is a hot topic in the field of microwave dielectric materials at home and abroad in recent years. This is mainly adapted to the development needs of microwave mobile communication.