随着红外探测技术和红外制导技术的迅速发展,水面舰艇面临越来越严重的红外威胁。
互联网摘选
Protective experimental research on spray polyurea on concrete faced rock fill dam surface
混凝土面板坝表面喷涂聚脲防护试验研究
互联网摘选
The forged disc has an integral Stellite hard faced seat and guide surface.
锻造阀瓣具有整体钨铬钴合金硬化阀座和导轨表面.
互联网摘选
