| 摘要 |
A fluid supply system for alternately supplying to a discharge control nozzle a primary fluid and a fluid intermix which includes the primary fluid. A first control valve is interposed between a pressurized source of the primary fluid and the discharge nozzle, and is responsive to a predetermined change in fluid pressure at the discharge nozzle due to opening and closing of the nozzle to control a second valve which effects alternate supply to the discharge nozzle of a fluid intermix which includes the primary fluid.
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