上元古界—下古生界
upper-proterozoic-lower-paleozoic
中、古生界
mesozoic-paleozoic
mesozoic-palaeozoic
Mesozoic group and Paleozoic group
上古生界烃源岩
Upper Paleozoic source rock
上古生界天然气储集层
Upper Paleozoic gas reservoir
上古生界气田
early Palaeozoic gas field
上古生界煤系
Neopaleozoic coal-bearing series
上古生界储层
upper palaeozoic reservoirs
the reservoir of Upper Paleozoic
古生界盐构造
Paleozoic salt structures