臭氧是一种非常活跃的氧气形态。Ozone is a highly reactive form of oxygen gas.臭氧由氧气和紫外线发生反应而产生。Ozone is produced by the reaction between oxygen and ultra-violet light.密封的飞机内很少需要补充氧气。Supplementary oxygen is rarely needed in pressurized ai...
He laid the foundation of the science of bacteriology.他为细菌学科学奠定了基础.The history of anthrax is intimately associated with the history of bacteriology and infectious disease.炭疽病的历史与细菌学和传染病学的历史是密切相关的.The work on anthrax abru...