The fading reaction of DCB arsenazo with Cr 2 O 2 - 7 was studied.本文研究了DCB偶氮胂与Cr2O2-7的褪色反应.Cars were covered with clear-coat finish at the factory to protect the underlying paint from fading.工厂给汽车上了透明罩漆，以防底漆褪色。Hopes of a...
卡车司机安然脱险，但有一位行人受了伤。The lorry driver escaped unhurt, but a pedestrian was injured.很多人受了伤，多辆车起火。Dozens of people have been injured and many vehicles set on fire.士兵发射橡皮子弹驱散人群时有7个人受了伤。Seven people were wounded when soldiers ...