 |
| |||
| period section | |||
| periodic section (steel, 【技】横断面形状和尺寸呈周期变化的一类型钢。它包括纵轧周期断面型钢、横轧周期断面型钢和斜轧周期断面型钢。周期断面型钢能代替一部分用机械加工的构件，具有节能降耗、降低成本等优点，是一种有发展前途的钢材类型。); periodic steel section; period section steel | |||
| periodical section | |||
| 周 期 断面型钢: 2 phrases in 1 subject |
| Metallurgy | 2 |
The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Add | The server is undergoing maintenance and the site is working in read-only mode. Please check back later.">Report an error
| Get short URL | Language Selection Tips