Ceiling-floor offer高下限协议
Ceiling-floor design高低限协议
Ceiling-floor agreement上下限协议;上下限协定;上下限和谈;上下限以及谈
ceiling and floor effect上限下限效应
ceiling and floor effects天花板和地板效应
Ceiling and Floor Lamps吸顶灯和地板灯
Ceiling-floor上下限协议
ceiling and floor天花板和地板;最高和最低
Ceiling-floor conformity高下限协议