floaters债券发行人floatv.漂浮；浮现；飘动；提出n.浮标；漂浮物；漂浮floating slab railway浮置板轨道floating-point type浮点类型float-operated trap浮筒隔汽具floating drilling rig浮式钻井装置floating point number浮点数floating-ring shaft浮环套管Floating Machine Shop水上机器修理厂floating-rate bonds浮息债floating end face sea浮动端面密封floating patella test浮髌试验