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焦性地沥青
 焦性地沥青
oil asphaltic pyrobitumen
| 页岩
 页 岩
geol. shale
 页岩
desert. shale
dril. clay shale
eng.geol. cleaving stone
hydroel.st. shale; shiver
met. bind; shist; slate

to phrases
焦性地沥青
oil asphaltic pyrobitumen
焦性地沥青
: 3 phrases in 2 subjects
Oil / petroleum2
Technology1