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to phrases
kerogen shale
econ.
油毋页岩
hydroel.st.
油页岩
(oil shale)
oil
干酪根页岩
;
油页岩
tech.
油母
页
岩
;
沥青质页岩
kerogen shale
:
2 phrases
in 2 subjects
Geology
1
Technology
1
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