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O₂
agric. 氧表示无性染色体
 English thesaurus
O2
abbr. Optimistic Orators Toastmasters Club
abbr., med. Both Eyes; Diatomic Oxygen; Molecular Oxygen; Oxygen; oxygen
abbr., mil. Object Oriented
abbr., oil Middle Ordovician; single oxygen
O&G oxygen depletion sensor
O₂
abbr., auto. oxygen
O 2
abbr. oxígeno
O2
abbr., earth.sc. Middle Ordovician
o_2
abbr. both eyes, sometimes written as o2
O 2
abbr., med. partial pressure of oxygen
O₂: 114 phrases in 20 subjects
Agriculture8
Automobiles32
Chemistry2
Earth sciences4
Ecology1
Electronics13
Explosives and Explosive Ordnance Disposal1
General5
Genetics1
Metallurgy12
Nautical2
Nuclear physics3
Nursing2
Perfume2
Pharmacology1
Sports1
Steel production1
Surgery1
Technology14
Water resources8