这艘渡船甚至没有时间发出紧急呼救信号。
我们在无线电里收到了呼救信号。
他们发出了一枚呼救信号火箭。
驱潜快艇听到了露西的呼救信号。
呼救信号SOS在字面上没有任何意义。
这条船正发出呼救信号。
本实用新型涉及一种汽车附件即汽车遇险呼救信号器。
The utility model relates to an emergency signal annunciator for calling help for vehicles, which relates to a vehicle attachment.
在偏远地区，呼救信号可以引导救援队员直接到达失事地点。
In remote areas, the beacons guide search and rescue personnel directly to the crash site.
直到该船快要沉没时，报务员才发出了这个新的呼救信号s.o.s。
It was not until that ship was near sinking did the radiomen send out the new signal.
从洛杉机飞往华盛顿的飞机即将起飞，我接到了一个二等舱里的盥洗室呼救信号灯的求救信号。
We were flying from Los Angeles to Washington, D. C, when I answered a lavatory call light in the coach cabin.
穿用者也可通过急剧拉扯松紧带来触发报警系统，报警信号会吓走攻击者，也能当作呼救信号。
The wearer can also trigger the alarm voluntarily by sharply pulling the drawstrings to scare off the attackers and as a call for help.
Walters真的担心起来，他用无线电发了呼救信号，地面接线员接到信号并自此和他一直保持联系。
A clearly worried Walters used his CB radio to transmit a mayday call, which was picked up by operators on the ground who then maintained contact with him throughout the flight.
航空飞行管理人员说，他们在法航这架空中客车330飞机失踪之前没有收到机组人员发出的任何异常信号或呼救信号。
Air traffic controllers say they received no unusual messages or distress calls from the crew of the Airbus 330 before it disappeared.
航空飞行管理人员说，他们在法航这架空中客车330飞机失踪之前没有收到机组人员发出的任何异常信号或呼救信号。
Air traffic controllers say they received no unusual messages or distress calls from the crew of the Airbus 330 before it disappeared.
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