line of demarcation〔名词〕分界线详细»
line of demarcation〔名词〕分界线详细»
分界线boundary;dividing line;line of demarkation详细»
分界线line of demarcation;shed line详细»
分界线demarcation line;line of demarcation详细»
分界线boundary line;demarcation line;dividing line;divisional line详细»
分界线divide;great divide;separatrix详细»