... step by step concentration 逐级提浓 crack of welding seam 焊缝开裂 preoperative chemotherapy 手术前化疗 ...
基于6个网页-相关网页
针对焊缝开裂情况及原因，采用了在高温、低压装置不停工在线补焊方案。
Aimed at the cracking and its reasons, on - line patching was carried out without shutting down high temperature low pressure plant.
文章分析了直管对接焊缝开裂和掌形管开裂的原因，并提出了相应的防护措施。
In this article an analysis is made on cracking reasons of the straight tube and a palm welding and the relative prevention measure is put forward.
简要分析了一台蒸发罐发生焊缝开裂的主要原因，提出防止此类压力容器事故的预防措施。
The paper briefly analyses the main cause of crack of welding seam on an evaporation tank and proposes the precautionary measures for preventing such kind of accident on pressure vessels.
应用推荐