floating on even keel

同义词释义

1)floating on even keel,正浮2)top-up,正浮3)zero trim,正浮4)positive floatation,正浮选5)positive flotation,正浮选6)Direct flotation,正浮选7)Flotation,正浮选8)reverse-positive flotation,反浮-正浮9)Reverse-direct foltation,反-正浮选10)positively buoyan tether cabler,正浮力舱