| 摘要 |
A system for dispensing fluid comprises a first pumping device in communication with, and for supplying a first fluid to, a first pump outlet, a first fluid communication dispensing line for communicating the first fluid from the first pump outlet to a dispensing device, a second pumping device in communication with, and for supplying a second fluid to, a second pump outlet, and a second fluid communication dispensing line for communicating the second fluid from the second outlet to a second dispensing device. A supply sub-system causes the first pumping device to supply the first fluid to the first pump outlet and the second pumping device to supply the second fluid to the second pump outlet. The first and second pumping devices are mechanically coupled such that, when one of the pumping device supplies fluid to a pump outlet, fluid is drawn into the other pumping device through an inlet.
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