They drilled through several layers of rock to reach the oil.
他们钻透了几层岩石寻找石油。
Below the water table and rock is oil.
地下水和岩石下面是石油。
Artificial rock is absolutely necessary for exploitation research in oil - field.
人工岩样是油气田开采研究中必不可少的用品。
Reservoir is the key to explore oil in carbonate rock.
在碳酸盐岩中找油，储集条件是关键。
Source rock evaluation is the basis of oil and gas resource assessment.
源岩评价是油气资源评价的基础。
Source rock evaluation is the basis of oil and gas resource assessment.
源岩评价是油气资源评价的基础。
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