染色剂还可用于雪地,用它将求救代码字母染色也非常有效。 SOS介绍 英文是 Many people think that SOS means "save our soul", but actually SOS is the commonly used description for the international Morse code distress signal (...---...). This distress signal was first adopted by the German government in radio regulations effective April 1, 1905, and became the worldwide standard under the second International Radiotelegraphic Convention, which was signed on November 3, 1906 and became effective on July 1, 1908. SOS remained the maritime radio distress signal until 1999, when it was replaced by the Global Maritime Distress Safety System. 中文是 很多人认为SOS意味着"拯救我们的灵魂",但实际上SOS是国际电码遇险信号的常用描述(...---...)。这个求救信号首先通过了德国政府无线电法规并在1905年4月1日生效,然后成为了全世界标准下的第二国际无线电报公约,在1906年11月3日签署并于1908年7月1日开始生效。直到1992年被全球海上遇险与安全系统所取代之前,SOS仍然是海上无线电求救信号。