atomic ratio of calcium and phosphorus elements

atomic ratio of copper to zinc

Atomic Ratio of Hydrogen to Carbon

atomic ratio of moderator to fuel

hydrogen to carbon atomic ratio

the mean atomic ratio of deuterium to titanium

atomic moderation ratio

Atomic Trapping-Flame Atomic Spectrometry

axial compression ratio and slenderness ratio

B-C ratio (benefit-cost ratio)

benefit-cost ratio (B-C ratio)

focal ratio (=focal-length ratio)

grinding ratio(G-ratio)

maximum ratio combing according to signal to noise ratio

recirculation ratio recycle ratio

recycle ratio recirculation ratio

signal-noise ratio (=signal-to-noise ratio =SNR)

stop ratio and start ratio in time segment

price--earnings ratio;P/E ratio