Special safety concepts signalise a beginning failure of the leakproof operation.
當無泄露操作開始出現(xiàn)故障時,特殊的安全裝置會有報警信號發(fā)出.
互聯(lián)網(wǎng)
"signalize a busy intersection"
"He signed his disapproval with a dismissive hand gesture"
"The diner signaled the waiters to bring the menu"