-
Also, the existing water heater will act as a pre-heater for the entire system.
同样，现有的热水器将会当做整个系统的预热部分。
youdao
-
The second part of the solar water heater holds the water for the system.
太阳能热水器的另一部分为储水系统。
youdao
-
The second part of the solar water heater holds the water for the system.
太阳能热水器的另一部分为储水系统。
youdao