solution environment conditions 基本例句 水质条件 Electrodes are placed inside the tanks that contain the fish and water from a nearby water supply, and they set off an alarm if conditions inside the tank change.在水槽里放置电极，并从附近的水供给中给里面放置水和鱼，如果水槽中的水质条件发生改变，它们就会发出警报。