dead centre
美
英
- un.冲程的死点
- 网络零点
un. | 1. 冲程的死点 |
n. | 1. the exact centre of something 2. the position at the top or bottom of a piston stroke in a reciprocating engine or pump, at which point the piston and the connecting rod are in a straight line 3. a nonrotating pointed shaft mounted at both ends or one end of a lathe to support the workpiece and hold it in place |