bridge arm ratio

bridge ratio arm

ratio arm

fuel ratio control arm

mid-arm circumference to head circumference ratio

ARM ARM

arm in arm

arm-in-arm

arm-to-arm

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