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

To conceptualize(a text’s meaning)to meet the intent of the author (yi yi ni zhi)

access intent

acute intermittent porphyria

additional factor for intermittent heating

agreement in intent

agreement of intent

anaerobic-adding raw wastewater-intermittent aeration ((Anarwia))

approximate intermittent angle