单词pay bed
un.: 产油层；生产层网络: 差额病床
（英国免费公立医院的）自费病床，私人病床:
(in the UK) a bed for private patients that they pay to use in a free public hospital
生产层
产油层
Applying Data of Geochemical and Gas Logging to Pay Bed Identification
地化气测录井资料在油水层识别中的应用