削光面;
With the rapid development of infrared ( IR) detection and guidance technologies, the threat faced by surface warships will be more and more serious.
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。
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
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