交错级数，交错序列
交错序列；交错级数定理
Di Achille said the shoreline evidence was found along a broad delta and included a series of alternating ridges and troughs thought to be surviving remnants of beach deposits.───盖迪阿希尔说，是沿着一个大的三角洲和发现的海岸线证据，包括海滩积累的残留下来的一系列的交替脊和浪谷。
Packed bed reactors (100) that have a series of alternating layers of packing.───具有一系列交替填料层的填充床反应器(100)。
The article deals with the functions of DC AC series intelligent power inverters, software PWM technology and alternating voltage output modulation technology.───介绍了DC AC系列智能电源逆变器的功能，软件PWM技术及其交流电压输出调制技术。
the convergence and summation of bi - alternating series───一类双交错级数的收敛性及求和法
The test for alternating series───交错级数的一种审敛方法
alternating currents───交流电
alternative energies───替代能源；新能源
alternating current───[电]交流电
alternating lights───交变光
alternative histories───选择的历史
alternative societies───另类社会
alternating voltages───交流电压
alternative comedies───另类喜剧
alternative remedies───可代补偿；替代补偿