coke ratio reduced

Navigation Ratio

Nd-Hf isotopic ratio

Near forward scattering ratio

near-far spacing counting ratio curves

near-farther spacing capture counting ratio curves

near-zero optimum average damping ratio

negative Poisson’s ratio

negative segregation ratio

negative sliding ratio

natural void ratio

neighbor survival ratio

Neoplasm restraining ratio

net asset profit ratio

net braking ratio

net capital to debt ratio

net income ratio