这是无氧时所得能量的19倍.This is 19 times the energy obtainable under anaerobic circumstances.光谱测量用的乳胶应贮存在干燥 、 无氧的环境中.Spectroscopic emulsion should be stored in a dry, oxygen - free environment.地方的情况(特别是有氧或无氧)影响着生物降解.Local conditio...
在他头顶的天花板上有一道很深的裂缝。There was a deep crack in the ceiling above him.帆船的船体上出现了一条裂缝。The yacht has sprung a leak in the hull.裂缝、凸起、剥落的勾缝和湿斑都意味着存在问题。Cracks, bulges, crumbling pointing and damp patches mean trouble....
It's very discouraging to be sneered at all the time.成天受嘲讽是很令人泄气的.Discouraging words for those who believe that a college's job is to educate, not coddle.对于那些认为学校的职责是教育而非溺爱的人而言,这样的话实在让人气馁.discouraging advice使人沮...