electron-tube heater

例句：

1. 1.The electronic tube heater is a popular choice for heating small spaces.
   电子管加热器是加热小空间的热门选择。
2. 2. The new electronic tube heater has a sleek design and efficient heat distribution.
   新的电子管加热器设计简洁，热分布效率高。
3. 3. The electronic tube heater is easy to install and requires minimal maintenance.
   电子管加热器安装简便，维护需求低。