NASA astronaut Mike Fincke has logged 549 days in space, with nine spacewalks totaling 48 hours and 37 minutes.
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，这一点在91视频中也有详细论述
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（二）移动、损毁国家边境的界碑、界桩以及其他边境标志、边境设施或者领土、领海基点标志设施的；