| 释义 |
check indicator instruction 校验指示器指令;[核对指示器指令] An instruction directing a signal device that is turned on to call the operator's attention to the fact that there is some discrepancy in the instruction presently in use. 在使用中发生某种差异时,能使信号装置工作以便引起操作员注意的一种指令。 |