1) manufacturing of metal spiral case
金属蜗壳制作
2) metal spiral case
金属蜗壳
1.
Erection technique of king-sized metal spiral case;
特大型金属蜗壳安装技术
2.
, this paper describes the erection technique of large sized metal spiral cases and presents some proposals for discussion.
结合二滩、三峡左岸电站等大型水电站水轮机金属蜗壳安装及焊接工艺等,阐述特大型金属蜗壳安装技术,并提出相关的建议,供大家探讨。
3) manufacturing of spiral case
蜗壳制造
1.
In order to apply such steel to the manufacturing of spiral case of turbine for Sanbanxi Hydropower Station,the welding tests on WDB620 steel were carried out and then it was compared with the performances of NK-HITEN 610 U2 steel produced by NKK Company in Japan.
国产WDB620钢是610MPa级低焊接裂纹敏感性高强度钢,为了将该钢种应用到三板溪水电站的水轮机蜗壳制造中,对WDB620钢进行了焊接试验,并与日本NKK公司生产的NK-HITEN610U2钢进行了性能对比。
4) lock case, of base metal
锁壳,贱金属制
5) case opener of base meta
开壳器,贱金属制
6) Helicella
厚壳大蜗牛属
补充资料：蜗壳居
1.比喻窄小的住所。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条