平底孔 meaning in Chinese
flat bottomed hole
flat-bottom hole
flat-bottomed hole
flat-bottomedhole
Examples
- Flat - bottomed hole equivalent
平底孔当量 - Method for ultrasonic testing of special forgings by an immersion technique using flat - bottomed holes as a reference standard
以平底孔为参考标准采用浸没技术的特殊锻件的超声波试验法