为什么the time average of a time derivative vanisches?在文章“A molecular dynamics method for simulations in the canonical ensemble” 中看到the time average of a time derivative vanisches这句话,怎么证明啊?

为什么the time average of a time derivative vanisches?在文章“A molecular dynamics method for simulations in the canonical ensemble” 中看到the time average of a time derivative vanisches这句话,怎么证明啊? time weighted average是什么意思 time average equation是什么意思 time average equation是什么意思 above the average and below the average. 帮翻译 ：You are the average of the five people you spend most time with. 英语翻译1.Cumulative average-time learning model.The cumulative average time per unit declines by a constant percentage each time the cumulative quantity of units produced doubles.2.Incremental unit-time learning model.The incremental time needed 英语语法两个问题一 the skills of the teachers were probably well above average for the United States at that time .above average 的中间为什么不加the?是for为什么不是in 二 every student should regularly experience the “aha ” beyond average还是beyond the average? take the average average man in the 英语翻译Chart 1 shows the daily average amount of time the students of theschool spend on different after-class activities. more job opportunities will be created as the number of years that the average people work full time shrinksaverage怎么翻译?average people work full time shrinks 翻译成：平均人们全职工作吗? more job opportunities will be created as the number of years that the average people work full time shrinks1.shrinks 2.work full time是固定短语吗 average average average average