| 摘要 |
<p>The trolley for cleaning is for use in hospitals and hotels. It consists of a horizontal frame (1) with wheels (2), and two vertical U shaped frames (3',4') on it close together. Supports (21,22) are detachably held on the two U sides (5,7; 6,8) of each side of the trolley. The supports are in the form of frames with parallel arms (23,24) in which are slots of each arm are tilted at roughly ninety degrees.</p> |
