They can perform essential tasks, lend you money, encourage you, work for you, help you deal with an emergency, serve as a sounding board for your ideas, even fill in for you for a couple of hours.
Fore peak tank fresh water tank ballast tank emergency generator fuel oil tank use sounding pipe sludge tank use short sounding pipe.
艏尖舱、淡水舱、压载舱、应急发电机组燃油柜采用测量管测量，污油舱使用短测量管。
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Today, many groups use the word to mean a life-threatening emergency. The call is always given three times to prevent mistaking it for some similar sounding words.