单词	下肚
释义	同Hypogastric
随便看	bottom baryon bottom batten bottom beam stay bottom belt conveyor bottom block bottom block (running block) bottom blow bottom blowdown bottom blowing bottom-blown converter bottom blow off bottom blow off {boiler} bottom blow valve bottom board bottom-board bottom bolt bottom boom bottom border bottom-bottom pile bottom--bottoms bottom bounce bottom-bounce mode bottom boundary condition bottom boundary conditions bottom boundary layer