heavy calibre meaning in English
大口径
Examples
- Pretreatment of self - clinched heavy calibre gun barrel
大口径火炮身管机械自紧前处理工艺生产实践 - Application of current change backseat device on heavy calibre soft - recoil haval gun
电流变反后坐装置在大口径前冲舰炮上的应用分析 - Broken crevice analysis of high pressure and heavy calibre gas pipeline and prevention measure
大口径高压燃气管道断裂因素分析及防止措施