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Terms for subject Oil / petroleum containing trap door | all forms | in specified order only
EnglishChinese
trap-door block天窗式断块
trap-door block活门状断块
trap-door fault天窗式断层
trap-door fault活门状断层
trap-door structure天窗式构造
trap-door structure活门状构造
trap-door type perforated plate活门式多孔塔盘

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