4号口腔科直机头,直接导轮式直机头的英文

doriot handpiece

• 号:    howl; yell
• 口腔科:    department of stom ...
• 直:    straight; stiff
• 机头:    handpiece; nose; n ...
• 直接:    direct; immediate
• 导轮:    guide idler; guide ...
• 式:    type; style