The Bore is the diameter of the cylinder. The stroke is the distance the piston travels from BDC (Bottom dead center) to TDC (top dead center). The Bore is always mentioned first.
内径指的是气缸的直径;行程是活塞从下止点运行到上止点的距离。表述时,内径总是写在前面。
2
The peak polished rod load occurs near the bottomof the stroke with the start of the upstroke.
最大光杆负荷发生在上行冲程开始时的冲程底部附近。
3
When the piston reaches the bottomof the intake stroke, the intake valve closes, trapping the air-fuel mixture in the cylinder.