| 释义 |
rockshaftenUK
rock·shaft R0280100 (rŏk′shăft′)n. A shaft that oscillates or rocks upon its bearings but does not revolve.rockshaft (ˈrɒkˌʃɑːft) n (Automotive Engineering) a shaft that rotates backwards and forwards rather than continuously, esp one used in the valve gear of a steam engine
rockshaftenUK
rockshaft[′räk‚shaft] (mining engineering) A shaft through which rock can be brought into a mine for filling, stopes, or other excavations. |