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million years
geol. 百万年
million-years
earth.sc. 百万年
 English thesaurus
million years
abbr. my
abbr., oil m.y.
abbr., unit.meas. Ma (MichaelBurov); Myr (MichaelBurov)
million years
: 14 phrases in 8 subjects
Business2
Earth sciences2
Economy2
General3
Geology1
Metallurgy2
Oil / petroleum1
Oil processing plants1