niuniu6682000 - 2009/11/19 16:58:00
这个跟集料的最大粒径有关系，而跟级配无关，《普通混凝土力学性能试验方法标准.GB-T50081-2002》中规定öK§ xy_În#bbs.3c3t.comÔ :â3iî̲
öK§ xy_În#bbs.3c3t.comÔ :â3iî̲
öK§ xy_În#bbs.3c3t.comÔ :â3iî̲
öK§ xy_În#bbs.3c3t.comÔ :â3iî̲
öK§ xy_În#bbs.3c3t.comÔ :â3iî̲
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