Special safety concepts signalise a beginning failure of the leakproof operation.
當(dāng)無泄露操作開始出現(xiàn)故障時(shí),特殊的安全裝置會(huì)有報(bào)警信號(hào)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"