描述
计算机控制系统中干扰的来源是多方面的,有时甚至是错综复杂。总体上,按照来源,干扰可分为内部干扰和外部干扰。外部干扰与系统所在环境和使用条件有关,与系统内部结构无关。内部干扰则由系统结构布局、制造工艺等引入。
MOTOROLA SYMBOL MC9090 BARCODE SCANNER WIFI PDA MC9090G
SYMBOL MOTOROLA MC9097 MC9097-SKTHJBHA6WW
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SYMBOL MOTOROLA MC9094 MC9094-SKCHJBHA6WW
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Symbol Motorola MC7090 Barcode HandheldScanner MC70 NEW
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