什么一些昆虫和鱼摄入鱼藤酮会致死.Explain why rotenone ingestion is lethal to some insect and fish species.所述植物提取液可以是辣椒素、鱼藤酮.The plant extract liquid may be capsaicim or rotenone.为了优化鱼藤酮异构化制备异鱼藤酮的工艺.采用三氯化铝催化下异构化.To optimize the process o...
骗子们已使一些轻信的人上了当.The swindlers had roped into a number of gullible persons.轻信的态度只会使你想当然.Credulous attitude will only make you take anything for granted.骗徒们已使一些轻信的人上了当.The winders had roped in a number of gullible persons....
经济部长宣布了对石油销售的限制。The economic affairs minister announced limits on petrol sales.国内销售的停滞不前正阻碍着经济复苏。Stagnation in home sales is holding back economic recovery.销售的速度慢了下来。Sales are slowing up....