In this paper two methods to elevate the returnfactor of the d.
串联电阻法与双线圈换接法是两种提高直流电磁开关返回系数的常用方法。
2
Climate change is a big driving factor behind his warning and, in Fenner's opinion, we've passed the point of no return.
芬纳警告说气候变化是一个很大的拉动因素,他认为我们已经踏上不归路。
3
But thousands of people will continue to lose their jobs, and the elusive "feel-good factor" eagerly sought by politicians may take much longer to return.