Warning: file_put_contents(/www/wwwroot/ppbbu/28094.com/cache/a6b8c01789969363c5340dca8c050dae.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/28094.com/index.php on line 55 anti-freezing mixture例句_anti-freezing mixture英汉例句_anti-freezing mixture双解例句_贰靶汉英词典
This paper concluded and analyzed the depiction that concerned concrete frost mechanism for many years, and studied the anti-freezing mixture action. 本文综合并分析了多年来关于混凝土受冻机理的叙述，并对防冻外加剂作用进行研究。