manganese steel frog的意思|示意
锰钢辙岔
manganese steel frog的网络常见释义
锰钢辙岔 ... manganese stearate 硬脂酸锰 manganese steel frog 锰钢辙岔 manganese steel 锰钢 ...
manganese steel frog相关短语
1、 High Manganese Steel Frog 高锰钢辙叉
2、 manganese steel frog crossing 锰钢辙叉
3、 solid manganese steel frog 高锰钢整铸辙叉 ; 高锰钢辙叉
manganese steel frog相关例句
It is very difficult to welding a high carbon steel rail and a high manganese steel frog, which is still a worldwide puzzle.
碳钢钢轨与高锰钢辙叉的焊接难度很大，仍属国际性难题。