问：来个翻译高手给我翻译一段文字，谢谢了~~在翻译的时候注意标点符号运用哈
- 答：Co2 shielded welding welding operation 3G
Abstract: in shipbuilding occupies very important in the role of welding, the ship welding is to guarantee the ship density and intensity is critical to ensure the quality of ships is critical to ensure the vessels of safe voyage and operation is an important condition. And in welding assignments, mainly carbon dioxide welding primarily. This paper introduced the carbon dioxide welding 3G welding process, through the detail operation process and the process parameters, - 答：Abstract: in shipbuilding occupies very important in the role of welding, the ship welding is to guarantee the ship density and intensity is critical to ensure the quality of ships is critical to ensure the vessels of safe voyage and operation is an important condition. And in welding assignments, mainly carbon dioxide welding primarily. This paper introduced the carbon dioxide welding 3G welding process, through the detail operation process and the process parameters
问：焊接船舶比铆接船舶容易发生脆性破环的原因
- 答：发生脆性破坏主要是因为抗弯能力小啊。因为焊接船 连接靠电焊，焊口脆性大，比如一般用的 工具 断裂一般就是焊口那，一个道理，根本原因还是 焊接的时候钢铁内部发生了组织变化。铆接的就不一样了，也就是靠铆钉、螺栓来连接，它们的抗拉能力是很强的，而且有缓冲，中间有间隙。
所以一艘船如果完全靠焊接拼装是很危险的，也是不允许的，特别是大船 - 答：焊接容易在焊缝处形成粗大金相组织气孔、夹渣、未熔合、未焊透、错边、咬边等缺陷，增加裂纹敏感度，增加材料的脆性，容易发生脆性断裂
- 答：原因楼上说了，我补充一下。
现在造船铆接基本上淘汰了，都是焊接，特别是海船。
问：关于船舶的毕业论文
- 答：我这里有，我正好在写造船史方面的论文，但是挺多的。你具体是哪个方面，或者哪个时期，我挑选以后发给你吧！
已经发过去了，请查收！分两个压缩包！
