... portal γ monitor 门的框架势γ监视检测仪 position indicating system 位置指示仪 position indicator 位置指示器 ...
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depth and position indicating system 水深和船位指示系统
rod position indicating system 棒位指示系统
three-dimensional position indicating system 三维定位指示系统
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The three fishermen's vessel didn't have an Emergency Position Indicating Radio Beacon, which transmits a distress signal anywhere in the world through a satellite system, the navy said.
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