保持水温用英文怎么说呢

保持水温用英语可以用 "maintain water temperature" 来表示。

"Maintain" 是一个动词，意思是 "保持，维护"，例如：

Please maintain the temperature of the water at around 50 degrees Celsius.
(请将水的温度保持在 50 摄氏度左右。)

The thermostat helps to maintain the temperature of the room.
(恒温器有助于保持房间的温度。)

"Temperature" 是一个名词，意思是 "温度"。例如：

The temperature of the water has risen to 60 degrees Celsius.
(水的温度升高到了 60 摄氏度。)

The temperature outside is quite cold today.
(今天外面的温度很冷。)

以下是一些关于 "maintain water temperature" 的例句：

You need to maintain the water temperature at around 25 degrees Celsius in order to keep the fish healthy.
(你需要将水的温度保持在 25 摄氏度左右，以便保持鱼的健康。)

The water heater is designed to maintain the temperature of the water at a constant level.
(热水器的设计是为了保持水的温度在一个恒定的水平。)

Make sure to maintain the water temperature at a safe level for swimming.
(确保将水的温度保持在安全的游泳水平。)