At very high temperatures, more endothermic reactions play a role.在很高的温度下, 更多的吸热反应起作用.by endothermic structural changes由吸收了热能的结构变化This process is endothermic with rapid carbon deposition and deactivation of the catalyst....
At very high temperatures, more endothermic reactions play a role.在很高的温度下, 更多的吸热反应起作用.This process is endothermic with rapid carbon deposition and deactivation of the catalyst.此过程是吸热的,同时很快发生碳积沉并使催化剂活性减低.Is Hell exothermi...
The evening show was terrible, with hesitant unsure performances from all.晚上的演出很糟，所有人都缩手缩脚，显得很不自信。She was hesitant about coming forward with her story.她不大愿意站出来讲述自己的经历。She's hesitant about signing the contract.她对是否签这...
方法以 4- 溴苯酚为原料,经4步反应制得目标化合物阿达帕林.Methods: The target compound was prepared through a four - step reaction from 4 - bromophenol .使用依尔福溴苯酚显影剂,按1+1稀释,或者依尔福PQ通用 显影液,按1+5稀释.Use either ILFORD BROMOPHEN developer diluted 1 + 1 or...
幼虫变为蛹,然後再变成蝴蝶.A larva metamorphose into a chrysalis and then into a butterfly.蝴蝶由蛹孵化而出.The butterfly emerged from the pupa.蛹蛰伏在土壤中，直到冬天它们才蜕变成蛾子飞出来。The pupae remain dormant in the soil until they emerge as adult moths in ...