蜂窝垫
cancellation laws───[数]消去律；相消律
cancellation fees───取消费；销号费
cancellation law───[数]消去律；相消律
castellation───n.雉堞墙；城堡状建筑
cancellation fee───取消费；销号费
cancellations───n.取消；删除
castellated beams───[建]堞形梁
castellated nuts───槽式螺母，槽形螺母；[机]槽顶螺母
constellational───星座