concave mounting bolt
英
美
- 凹板固定螺栓
双语例句
- If table index shafts are loose, tighten mounting bolts.
如果台面索引轴松动,拧紧固定螺栓。 - One fixation bolt of undercarriage support in aircraft fractured after servicing a long time.
某飞机起落架缓冲支柱固定螺栓长期使用后断裂。
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