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
alternate bar交替沙坝
alternate tape替补磁带机
alternate text备选条文(本)
alternate code备用代码
alternate load交替负载,交替荷载,交变负载,交变载荷,反复载荷,交替载荷
alternate mode交替方式
"They were deglycerolized by alternately centrifuging and mixing"
"he planted fir and pine trees alternately"