free - swimming ROV自由移动式遥控潜水器
free-swimming ciliata自由游动纤毛虫
free-swimming diver自泳式潜水员
free-swimming protozoa自由游动原生动物
Free-swimming dinoflagellate自由游动甲藻
free - swimming tethered vehicle系缆自游式潜水器
unmanned free-swimming suhmersible无人自泳式潜水器
unmanned free-swimming submersible无人自泳式潜水器
unit swimming free-style自由泳
ADJ（形容词） (of aquatic animals or larvae) not sessile or attached to any object and therefore able to swim freely in the water (某些水生动物或幼虫)能到处自由浮游的