甲类钢
- 网络type A steel; Atype steel; A classification steel
甲类钢甲类钢
type A steel
xin giúp đỡ về thuật... ... 加权平均效率 weighted average efficiency 甲类钢 (A类钢) type A steel 架空线 overhead line ...
Atype steel
什么意... ... Atype streptococcus rapid diagnosis method A 型链球菌诊断法 Atype steel 甲类钢 Metallic Atype star 金属线星 ...
A classification steel
甲类钢(A classification steel) (2011-1-4 20:57:28)碳素钢脆性(shortness of carbon steel) (2011-1-4 20:55:59) « 船体钢 (steel...
A-type steels
这种钢分甲、乙、特三类供货，甲类钢(A-type steels)只保证力学性能，乙类钢(B-type steels)只保证化学成分，特类钢(C-type s…