first alarm meaning in Chinese

一级火警

The neighbors had told him they had heard a scream, that was the very first alarm .
邻居们对他说，他们听到一声尖叫，那是最先的凶号。
First output heating first alarm al1
闪光报警带继电器输出
Much of that was expected , but tuesday ' s rating was the first alarming sign for nbc that increased tv competition has
这种状况早有所预料，但上周二的收视率第一次给nbc电视网拉响了警报，日益激烈的收视率大战对nbc造成了严重的影响。
Much of that was expected , but tuesday ' s rating was the first alarming sign for nbc that increased tv competition has taken a toll
这种状况早有所预料，但上周二的收视率第一次给nbc电视网拉响了警报，日益激烈的收视率大战对nbc造成了严重的影响。