具有运行时间计数器，亦可包含燃烧器的每一种燃料运行的累计时间。

There is an integrated operating hour counter, which also totals the burner's operating hours for each fuel.

youdao

具有运行时间计数器，亦可包含燃烧器的每一种燃料运行的累计时间。

There is an integrated operating hour counter, which also totals the burner's operating hours for each fuel.

youdao