例句
The admixtures are added to improve the properties of the concrete.
外加剂被添加以改善混凝土的性能。
You need to admix the ingredients carefully.
你需要仔细地混合这些成分。
The admixtures are added to improve the properties of the concrete.
外加剂被添加以改善混凝土的性能。
You need to admix the ingredients carefully.
你需要仔细地混合这些成分。