欧美人与动牲交a欧美精品z|日韩人妻精品一区二区三区|亚洲产在线精品亚洲第二站|免费在线观看无码AV毛片

  • <dfn id="quu0s"><dl id="quu0s"></dl></dfn>
  • <cite id="quu0s"></cite>
    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.