calorifier

If it does not meet the second characteristic, a printing plate-too small and the amount on the low side, the calorifier plates easy dirt;

若不相符第二个特点，印版砂纲，火度偏矮印版便上不净；

Indirect cooling circuit via heat exchanger allowing optional heat recovery for the calorifier or cabin heating.

间接排管水冷却方式，水流经交换器时，允许水流经任意方向通过水与交换器或散箱。