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Sinian adj.
desert. 震旦纪 (系)
dril. 震旦系
earth.sc. 震旦亚界
oil 震旦纪
 English thesaurus
Sinian abbr.
abbr. Si (MichaelBurov)
Sinian: 18 phrases in 6 subjects
Desert science1
General1
Geology1
Hydroelectric power stations1
Oil / petroleum3
Technology11