国际循环：严重颈动脉狭窄如何采用药物治疗以减少大血管血栓猝中的风险？
International Circulation: What is the medical therapy for severe carotid stenosis to reduce large-vessel embolic stroke?
当装有水和水蒸气的玻璃瓶放进干冰和酒精的混合物中的时候，猝冷就会使得水蒸气凝结成冰晶体。
When the glass bottle containing water and water vapor is placed in a mixture of dry ice and alcohol, the sudden cold will make the water vapor condense into ice crystals.
分析了电磁增强和荧光猝灭效应在银胶一竹红菌甲素体系中的作用。
The effects of electromagnetic enhancement and fluorescence-quenching in the silver-HA system are discussed.
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