... marked price 标价 marked cycle 标号循环 marked pole 记名磁极 ...
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·2,447,543篇论文数据，部分数据来源于NoteExpress
结果表明普通低标号混凝土抗冻性能较差，冻融循环对混凝土强度影响较大。
The result indicated that the resistance to freezing and thawing of normal low-strength concrete is very low. Freeze-thaw cycles have important affect to concrete strength.
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