| 摘要 |
<p>A vertical box (1) is made of plastic and fixed to a wall (2), has an upper L-shaped part supporting a cartridge (3) providing a reservoir of liquid which may be dispensed, under gravity, through a nozzle (5). A handle (10) pivoting about an axis (14) in operates the liquid dispensing mechanism. A piezoelectric transducer, which senses operation of the lever, enables counting of the number of operations and determines the amount of fluid dispensed.</p> |
