N2-O2-H2O is a model system for humid air.
H 2 O是空气-水体系的模型体系。
A large tree might make around 100kg of O2 per year.
一棵大树每年可以产生大约100公斤的氧气。
Double add double o1, double o2.
doubleadddouble o 1, doubleo2。
He has also fought at the O2 World in Berlin, Germany.
他还战斗在O2的世界在柏林，德国。
The blue color of the diver would indicate that there was a low O2 problem.
潜水者面部和肢端的蓝色显示有低氧问题。
But I did perform in the O2 Arena in London last week.
不过上周确实在伦敦的O2体育馆表演过了。不知道大家有没有去看呢。
The production rate of O2 increased at early stage and then decreased.
产生速率在休眠前期上升，在休眠后期下降。
氧气的化学符号是O2。
Stop, relax, take a deep breath of O2 and join our refreshing journey.
停下急促的脚步，让乐韵和舞步送你一趟如呼吸纯氧般轻盈清新的旅程。
Gas exchange: The relationship of O2 and CO2 in gas and blood.
气体交换：氧气与二氧化碳在血、气中的关系。
Gas exchange: The relationship of O2 and CO2 in gas and blood.
气体交换：氧气与二氧化碳在血、气中的关系。
应用推荐