1)beam adjusting disc plate,调光座盘2)Chroma theories,光学调制盘3)chopper,光调制盘斧4)baston['bæstən],座盘5)body center plate filler,上心盘座6)button tray,钮座盘
用法和例句
The causes to such defects as cracking and sand inclusion in the integral rear draft lug and the body center plate filler are analyzed, and the technology improvement measures are described.