用LB1405 LB1415作直流电平指示
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直流电平指示="" 用lb1405="" src="/images/21ic_nopic.gif" data-src="0aff+J1TCUDWo0sxCs1c6fmbFDTm3eCKi98a8KNoExKuPIRZ1Rpfg0sXSksFNjAyLQoT/VbaFG7uXtMFTdcgN8eYZQUab7No1VOq7FV13CpZBqSPJ2oBvPi6JolNFg" class="delay_img" alt="用LB1405 LB1415作直流电平指示" />