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R2
gen.	ontploffingsgevaar door schok, wrijving, vuur of andere ontstekingsoorzaken
English thesaurus
R2
abbr., commun.	register 2 signaling
abbr., fin.	r squared
abbr., med.	Large Residual Tumor (TNM (tumor-node-metastasis) Classification); Transverse Relativity; second year resident (milayamoya)
abbr., media.	reality regenerator
abbr., mil.	Reporting Responsibility
abbr., water.suppl.	Coefficient of Determination
mil.	reporting responsibility
R²
abbr., fin.	r squared
r²
abbr., dril.	rod²

R2: 15 phrases in 4 subjects

Communications	10
Electronics	2
General	2
Information technology	1