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| 如果發覺自己無法使用一些功能或出現問題,請按重新整理一次,並待所有網頁內容完全載入後5秒才進行操作。 During last week's polar vortex deep freeze in Chicago, Illinois, USA, more than half of the Metra and Amtrak train were cancelled. Some of the rail switches were frozen and trains could not be switched to the right track. There was not ehough defrosting fire burning equipment to maintain the safe operation of the rails and switches. With day time high temperature of -15 degree F, and feel like -50 degree F with wind chill, lot of things were frozen solid. Some water main pipe were broken due to frozen water expansion. It was a big mess.... |
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