pool based variable-rate tending system

例句：

1. 1. The new pool-basedvariable-rate tending system significantly improves the efficiency of watering.
   新的基于池的可变费率养护系统大大提高了浇水的效率。
2. 2. The farmers have adopted thispool-based variable-rate tendingsystem to save water and reduce waste.
   农民们采用了这个基于池的可变费率养护系统来节约用水和减少浪费。
3. 3. The pool-based variable-ratetending system is a cost-effectivesolution for small farms.
   基于池的可变费率养护系统是小型农场成本效益高的解决方案。