sandwich type internal floating cover的意思|示意
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明治式内浮顶；砂岩地层；夹层式内浮顶
sandwich type internal floating cover的网络常见释义
三明治式内浮顶 钢盘式内浮顶 steel pan type internal cover 三明治式内浮顶 sandwich type internal floating cover 铝浮筒式内浮顶 aluminium pontoon type internal cover ..