名词
中文翻译：保护信号
同义词：
['protective signal', 'safeguard signal']
例句：
-
1.The company issued a protection signal to prevent any further damage.
公司发布了一个保护信号以防止进一步的损害。
-
2. The police received a protection signal from the dispatch center.
警方从调度中心收到了一个保护信号。
-
3.The firefighters received a protection signal from the command center.
消防员从指挥中心收到了一个保护信号。