词汇	口上突起环
释义	口上突起环医epistomial ring
随便看	thick-walled tube thick-walled tubes thickwalled vessel thick walled vessel thick-walled vessel thick-wall head thickwall hydrogenation reactor thick wall hydrogenation reactor thick wall ionization chamber thick-wall ionization chamber thick wall part thick wall pipe thick-wall pipeline thick walls thick wall salpingitis Thick walls deaden noise Thick walls deaden the noise from the street thick wall sensibility thick wall shell thick wall sign thick-wall solenoid thick wall spherical shell Thick walls stop sound thick-wall stainless steel clad plate thick wall steel cassete