... tanker mooring buoy 油轮系泊浮 tanker motor vessel 机动油轮 tanker owner 油船船东 ...
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机油泵从动齿轮 Oil pump driven gear
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机油泵驱动齿轮 Oil pump drive gear ; Oil-returning slot ; oil pump driving gear
机油泵驱动链轮 OIL PUMP DRIVEN SPROCKET
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柴油机电动明轮船 diesel-electric paddle vessel
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