研究开发出了多功能油井水泥外加剂。
指出性能优异的以防冻功能为主的多功能复合外加剂是制备负温混凝土或耐久性混凝土的技术关键。
The addition of compound anti-freezing admixture is the vital technique in the process of manufacturing durable negative temperature concrete.
指出性能优异的以防冻功能为主的多功能复合外加剂是制备负温混凝土或耐久性混凝土的技术关键。
The addition of compound anti-freezing admixture is the vital technique in the process of manufacturing durable negative temperature concrete.
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