题目内容
船舶在大洋中航行，附近没有其他船舶时，驾驶台可以无人值守。When a ship is sailing in the ocean and there are no other ships nearby, the bridge can be unattended.
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防海盗的关键在于顽强抵抗。The key to preventing piracy is to resist it tenaciously.
海事统计表明，还难事故频发的主要原因是人为因素和人为过失导致的。Maritime statistics show that the main causes of frequent accidents are human factors and human negligence.
天文定位通过观测等天体的高度确定船位。Celestial position fixing determines the ship position by observing the altitude of and other celestial bodies.
DGPS可以有效消除________ 、________ 和________ 等各种因素的影响，达到米级定位精度。 The DGPS can effectively eliminate the influence of______,_______,_______and other factors, and achieve meter-level positioning accuracy.
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