活塞
How to Understand
活塞 is the Chinese term for 'piston,' a mechanical component used in engines to convert pressure into linear motion. It is commonly found in internal combustion engines, hydraulic systems, and other machinery that requires controlled movement.
The character 活 (huó) means 'alive' or 'mobile,' and 塞 (sāi) means 'to plug' or 'to block.' Together, they describe a movable part that fits tightly within a cylinder to prevent fluid or gas from passing through, enabling efficient mechanical function.
活塞 is widely used in automotive and industrial contexts. Understanding this term helps learners grasp technical vocabulary related to mechanics and engineering. It is also useful in discussions about engine parts, vehicle maintenance, and machinery operation.