【正文】
()()()(])()([])()([])()([)(000||0||rcDBrcDBrcDBrcDBBrvqBrtvqrBvqrBtvqBrrBvtvtvqBrrBtvqdtvdmdtvdmdtvdmdtvdm??????????????????????????????????????????????????????????????0r?r?yzxBcr?)()()()( ||tvc o n s tvvtvtvtvDBDB??????????????=0 二階小量 抵消 抵消 =0 =0 帶電粒子在非均勻磁場中的運動 0)()()( 00 ?????? ? rcDB BrtvqrBvq ???????0)()()( 0 rcDB BrtvrBv ??????? ??????)()()()()( 000 0 rBBrtvrBrBv rcDB ?????????? ? ??????? ?)(/)()()( 0200 rBrBBrtvv rcDB ??????? ? ????? ?)0,s i n,( c o s),0,c o s,s i n(ttvvtvtvrccccccc??????????????)(/)()()( 0200 rBrBBrtvv rcDB ??????? ? ????? ?xBOq?vtc? y帶電粒子在非均勻磁場中的運動 )(/)()]()c o ss i n[(s i nc o s 0200 rBrBBeyetvetvetetv ryyccxccycxc????????? ? ???????? ??? ?????? )()(/)()c o s(s i nc o s 0200 rBrBeyBtvetetv zrccycxc?????? ?????? ?? ???? )()(/)()c o ss i nc o s( 020220 rBrBettetyBvxccycrc????? ?????? ? ????)0,s i n,( c o s),0,c o s,s i n(ttvvtvtvrccccccc???????????????)(/)()()( 0200 rBrBBrtvv rcDB ??????? ? ????? ?帶電粒子在非均勻磁場中的運動 )(/)()c o ss i nc o s( 020220 rBrBettetyBvvxccycrcDB?????? ?????? ? ????0s i nc o s,2/1s i nc o s 22 ??? tttt cccc ????xrcyrcDB eyBrBvrBrBeyBvv ??????