speculum oris
... eye speculum 开睑器 nasal speculum 鼻窥器、鼻镜 speculum oris 张口器 ...
mouth jaw
... mouth gag 开口器,张口器 mouth jaw 张口器 mouth lamp 口腔灯 ...
oris speculum
... 滤口器 filteringmouthparts 张口器 mouth prop ; mouth jaw ; oris speculum ; speculum oris 蝴蝶口器 Under a microscope ...
defroster diffusor