The yield of chlorination was 92.8 % , using phosphorus oxychloride as the chlorinating agent.在氯化反应中, 以三氯氧磷为氯化剂,产率为92.8%.In the reaction of chlorination, carbon tetrachloride was used agent, and chlorine gas as chlorinat...
玛丽把头向后仰，以便能看到他。Mari tilted her head back so that she could look at him.他把头歪向一边，重重地叹了口气。He tipped his head to one side and sighed dramatically.他摇下车窗，把头探了出去。He rolled down his window and stuck his face out....