During the intake or admission stroke, the piston moves downward as a charge of combustiblefuel and air is admitted into the cylinder through the open intake valve.
在摄入或中风入院，活塞动作，作为燃料和空气中可燃负责向下是进入气缸通过公开承认，进气阀。
2
It also breaks down food, paper and other combustible material into a fibrous mass that can be used either as fuel or for anaerobic digestion.
用热压灭菌法也能将食物、纸张和其它可燃物粉碎并压制成纤维块，产生的纤维块可作燃料或用于厌氧消化。
3
This was what the residents use for a stove. The fuel comprised coal bits as well as other bits of wood and combustible materials.