| 释义 |
dead-centre 英'deds'entər美'deds'entər BNC²³⁶²¹³⁺¹
基本英英例句
n.死点⁵⁰;死顶尖⁵⁰
名词 dead centre:
the position of a crank when it is in line with the connecting rod and not exerting torque用作名词The spark is therefore timed to occur before the piston reaches top dead center, otherwise maximum pressure would not be reached in time.因而，在活塞到达上死点前，火花便会发生，否则就不可能适时达到最高的压力。
The dead center, being a stationary bearing point, must be lubricated.由于是固定的支承点，死顶尖必须润滑。 |