（七）在海上或者与海相通的可航水域救助、企图救助人命或者财产；
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If you watch slow-motion video of a guitar string vibrating, you’ll see a complex, evolving blend of squiggles. These squiggles are the mathematical sum of all of the string’s different harmonics. The weird and interesting thing about harmonics is that each one produces a different pitch. So when you play a note, you’re actually hearing many different pitches at once.，更多细节参见新收录的资料
But then SpaceX communications manager Dan Huot reported on a live stream that mission teams had lost contact with the ship.