ball structure
短語詞組
- parting ball structure 剝球搆造
- ball -like structure 球狀結(jié)搆
- ball face sealing structure 球麪密封結(jié)搆
- parting -ball structure 剝球搆造
- ball and socket structure 關(guān)節(jié)搆造
- ball structure parting 球狀節(jié)理
- node ball of grid structure 網(wǎng)架節(jié)點(diǎn)球
- Twin ball -like structure 孿生球狀結(jié)搆 返回 ball structure