For the typical high energy electron spectrum in outer radiationbelt, the charging time for dielectrics is of the order of an hour.
对于典型的外辐射带高能电子能谱情况，介质的充电时间为小时量级。
2
But some astronomers always suspected that the remaining antiprotons must become trapped by the Earth's magnetic field, forming an antiproton radiationbelt.
但是一些天文学家一直怀疑，那些剩下的反质子一定被地球磁场捕获，形成一条反质子辐射带。
3
Radiation detectors come as hand-held devices, wrist watches and pager-size gadgets that hang from the belt.