| 摘要 |
A liquid dispenser having two separate sized dispensing chambers. The first being larger volume dispenser having a piston which is of variable stroke to move within a first chamber to draw liquid into the chamber and then to force the liquid out of said chamber. The second being a smaller volume dispenser which comprises a second piston which is of variable stroke and moves within a bore in said first piston to draw liquid into said bore and to force liquid out of said bore.
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