最大呼气中段流量 MMEF ; maximal midexpiratary flow curve MMEF MMF ; maximal mid-expiratory flow ; maximal midexpiratory flow curve
阶段曝气 step aeration ; stepped feed
肺段支气管 [解剖] Segmental Bronchi ; [解剖] bronchi segmentales
支气管肺段 [解剖] bronchopulmonary segments
凝析气段塞流数学模型 Model mathematics of condensate gas slug flow
无油气地段 barren gap
天然气一段转化催化剂 Nature gas primary reforming catalyst
含气层段 gas bearing interval
最大呼气中段流速 MMEF ; maximal medexpiratory flow curve
环状分段气罩 loop segment skirt
传令兵在跑了这么长一段路后，直喘粗气。
After running such a long way, the messenger was gasping for breath.
那是这样的一段时期：如果犯错是自然的，那么那种孩子气的希望、信仰和快乐也是自然的。
It was a period to which, if error was natural, so was the boyish faculty of hoping, believing and rejoicing.
研究人员播放一种声音，然后隔一段时间(每组的时间长短不同)，向老鼠的眼睛内吹一阵气，令它们眨眼睛。
The researchers played a sound and then, after a set period of time that varied between each group, blew a puff of air into the rats' eyes, making them blink.
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