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Shielding

在多层介质中,如果其上部覆盖层内有一层的层速度特别大(大于其下任何层)时,则其下面即使存在着速度界面,一般也不能形成折射波,因为波穿过高速层后不能以临界角入射到下面界面上。
  • 屏蔽夹厂家资料

    一般有使用到无线通信的产品,通常都会在电路板上设计屏蔽框(Shielding frame)来隔绝电磁干扰(EMI),现在有些脑筋动得快的厂商想出了使用夹子(clip)来取代屏蔽框的方法,这种夹子不但可以使用SMT打件,而且体积小所以不怕变形。这就是传说中的屏蔽夹了。

    标签: 屏蔽夹

    上传时间: 2013-11-05

    上传用户:3294322651

  • 屏蔽夹厂家资料

    一般有使用到无线通信的产品,通常都会在电路板上设计屏蔽框(Shielding frame)来隔绝电磁干扰(EMI),现在有些脑筋动得快的厂商想出了使用夹子(clip)来取代屏蔽框的方法,这种夹子不但可以使用SMT打件,而且体积小所以不怕变形。这就是传说中的屏蔽夹了。

    标签: 屏蔽夹

    上传时间: 2013-11-01

    上传用户:rnsfing

  • Of the password is: Server: "1." Client: + for the month of the date of the machine. Such as

    Of the password is: Server: "1." Client: + for the month of the date of the machine. Such as "2005/08/05", compared with the number "85" Database: "xzxq". I made the changes: 1, stations and customer-service once every 30 seconds to exchange information (to ensure continuous line) 2, computer services-an increase of the serial number 3, client-service to send the card serial number and send IP addresses to the service side 4, the desktop client by the embargo, since the definition of the icon to start the process faster (from the window Superman Code) 5, CS-Shielding some function keys, but CTRL + ALT + DEL keys can not shield the hope that a revised modify these friends 6, there are some corners of Laws (such as title, etc.). Client desktop icon in the Settings page set up first class to enter FXZWN999 open on to add, delete icon button

    标签: the password machine Client

    上传时间: 2016-06-27

    上传用户:xsnjzljj