| 摘要 |
<p>The receptacle is for a contact lens to bathe it with a liquid. It has a tube, open at one end, with a removable plain cover and a perforated cup to hold the lens. This is bordered by a collar, which can be locked between the edge of the receptacle and the cover. The base seals the second end and the perforated cup is removable to replace the bottom. The plain cover and the base are indentical. Both covers are fitted by normal screwing.</p> |
