EF正常组、EF下降组与对照组三组之间患者年龄、性别均无显著差异。
The parameters of patients with normal LVEF are compared with those of patients with low LVEF.
科学家们使用一种细菌和木炭颗粒，然后通过它们进入地铁轨道通风口下降组合充满灯泡。
Scientists used light bulbs filled with a combination of bacteria and charcoal particles, which they then dropped through vents onto the subway tracks.
各车站加强客运组织，将列车停运和变点情况提前向旅客公布，同时做好售票和旅客乘降组织工作。
Stations will step up organization of transport and inform unexpected suspension and change of trains to passengers, arranging ordered ticket sales.
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