单词	Viable bacteria counts
释义	Viable bacteria counts 活菌数
随便看	directional cross-country running directional cross-country sport directional cross-country sports directional cross-coutry directional crossing directional crystal directional crystallization directional crystalli zation blade directional cultivation Directional current directional current metre directional current protection directional damper directional damping directional data Directional Data Statistics directional demolition directional demolition blasting directional dependence directional deprivation directional depth migration directional derivation directional derivative DIRECTIONAL DERIVATIVE AND ITS APPLICATION directional derivatives