奥里诺科重油油藏
Orinoco heavy oil reservoir
边底水稠油油藏
heavy oil reservoirs with edge or bottom water
heavy oil reservoir with edge and bottom water
变速箱机油油面表
transmission oil level gauge
变速箱机油油面表总成
transmission oil level gauge assembly
薄互层稠油油藏
heavy oil reservoir with thin interbed
不正确的最终传动润滑油油面
incorrect final drive oil level
采油油轮油气分离装置
offshore oil tanker oil-gas separator
差速器机油油位目测表
differential oil level sight gauge