底酵母  bottom yeast

沈底酵母  bottom yeast

上层酵母  top fermenting yeast; top yeast; surface yeast

发酵酵母  baker’s yeast

乳糖发酵酵母  lactose ferment yeast

上面发酵酵母  top yeast

Ag底层  Ag under layer

Cr底层  Cr underlayer

FeAl下底层  FeAl underlayer

Pt底层  Pt underlayer

Ti底层  Ti underlayer

Ti下底层  Ti underlayer

凹面双层底舱  hip tank

澳底层  Aoti formation

半底层  Semi-basement

北极底层水  Arctic bottom water

表层底质  surface substrate

表皮基底层  Epithelia basal layer

薄层底水油藏  thin bottom-water oil reservoir; thin reservoir with bottom water; thin-bedded; thin oil reservoir with bottom water