The DESIGN REGULATIONS of MIX RATIO of ORDINARY concrete (JGJ55-2000) definitely point out that the con ditioned areas should study and establish the local strength formula of concrete.
《普通混凝土配合比设计规程》JGJ55—2000中明确指出有条件的地区应研究建立当地的混凝土强度关系式。
The DESIGN REGULATIONS of MIX RATIO of ORDINARY concrete (JGJ55-2000) definitely point out that the con ditioned areas should study and establish the local strength formula of concrete.
《普通混凝土配合比设计规程》JGJ55—2000中明确指出有条件的地区应研究建立当地的混凝土强度关系式。
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