The science of measuring the air, including the doctrine of its pressure, elasticity, rarefaction, and condensation
An instrument for measuring the degree of rarefaction of air contained in the receiver of an air pump.
plural of rarefaction n
rarefaction
n. 稀薄化, 稀薄[医] 稀疏[状态], 疏松[状态]
rarefaction of bone
[医] 骨质疏松
rarefactional
稀少的
rarefactions
(rarefaction 的复数) n. 稀薄化, 稀薄[医] 稀疏[状态], 疏松[状态]
