alternaterows隔行alternatev.交替；轮流adj.间隔的；轮流的；交替的n.代替者；供替代的选择alternately reversal load交替反复荷载alternate cropping system交替耕作系统alternate current dialing交流拨号制Alternate Space Inversion空号交替反转码alternate soaking process交互浸渍法alternate track assignment替代轨道指定Alternately taunt and jeer连潮带骂alternate form reliability复本信度alternate committee member候补委员alternate routing facility备用发送设备