前言：回收电子元件,青岛回收电子元件,回收电子元件青岛
1.现金超高价收购工厂库存、呆料、库存配件、IC芯片、内存芯片、贴片二三极管、贴片（直插）电容电阻等。
2.各类ＩＣ，二三极管，BGA各种电容电阻，发光管，接收头，咪头，晶振。青岛回收电子元件上门收购
3.手机ＩＣ，ＣＰＵ电源，字库，功放，中频，排线等。
4.电脑内存条，硬盘，CPU，主板，显卡、VGA内存芯片：K4、K9、 HY开头字母等。 青岛回收电子元件上门收购
5.各种液晶屏及摄像配件的电子料。收购电子元件收购IC求购电子元件,收购电子元件收购电子元器件,收购库存电子元件,回收电子元件
,回收库存电子元件,回收电子元器件,电子回收,电子收购,回收集成电路,收购集成电路,收购库存呆滞料，回收电子料件，回收单片机，
回收硬盘；青岛回收电子元件上门收购
长期收购库存积压各种电子元件，家电、通讯、电脑、设备、数码等方面的所有电子元件,配件,半成品,成品等等，收购IC，晶体，二极管，三极管，单片机，钽电容，电解电容，片容片阻，FLASH，电感，继电器，电位器等等，收购内存条、网卡、显卡
、硬盘、手机咪头、喇叭、液晶屏。 中介付佣，以诚相待，欢迎有库存电子的单位和个人来电洽谈。
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为便于安装、运行和维护，在二次回路中所有设备间的连线都要进行编号，称为二次回路标号。标号一般采用数字或数字和文字的组合，它表明了回路的性质和用途。二次回路标号的基本原则：凡是各设备间要用控制电缆经端子排进行连接的连接导线，都要按回路编号原则进行编号。某些装在屏顶上的设备与屏内设备的连接也需经过端子排，此时屏顶设备就可看作是屏外设备，而在其连接线上同样要按回路编号原则给予相应的编号。为明确起见，对直流回路和交流回路采用不同的标号方法，而在交、直流回路中，对各种不同的回路又赋予不同的数字符号。