 |
| Subject | Chinese | English |
| math. | 活动程式 | the active programs |
| auto. | 活塞提升阀式二冲程发动机扫气及排气口由活塞开闭，而进气口根据曲轴箱内压与大气压差由提升阀开闭 | piston lead valve type two-cycle engine |
|
| Subject | Chinese | English |
| math. | 活动程式 | the active programs |
| auto. | 活塞提升阀式二冲程发动机扫气及排气口由活塞开闭，而进气口根据曲轴箱内压与大气压差由提升阀开闭 | piston lead valve type two-cycle engine |