 |
| |||
| shell steel (【技】适于制造炮弹弹体的钢。对炮弹钢的基本要求是：高强度、高硬度，爆炸时破片率高且要求具有一定的破片重量以便加大杀伤力。炮弹是战争消耗品，常以十万、百万吨计，故要求使用经济钢材。常使用的炮弹钢有中碳钢、中碳锰钢、中碳硅锰钢和中碳锰钼钢。) | |||
|
炮 弹钢 : 1 phrase in 1 subject |
| Aviation | 1 |
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