OK, so let's say some young engineer is on the job the first day and says, OK, let's put in 200 kg of tickle, and let's put in about 25 kg of mag.

比如一些年轻的工程师,刚来上班时会说，投入200kg的四氯化钛，投入25kg的镁。

麻省理工公开课 - 固态化学导论课程节选