内窥镜照片投影仪
endoscopic film projector
内腔镜摄片投影仪
endoscopic film projector
三束投影仪
TBP Three – Beam Projector
TBP Three C Beam Projector
台式轮廊投影仪
table model profile projector
投影仪
projection instrument
projector
projectionmeter
Backwater at bridge constrictions
projection
Diascope
万能轮廓投影仪
universal profile projector
微型投影仪
mini-projection
micro-projector
subminiature projectional machine