NF P98-231-1-中文版
道路试验 - 非沥青材料的压实试验 - 第1部分:路基用沙子和砂砾的改良普罗克特压实试验
Road tests - Compaction tests for non-bituminous materials - Part 1: Modified Proctor compaction test for subgrade sands and gravels
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Road tests - Compaction tests for non-bituminous materials - Part 1: Modified Proctor compaction test for subgrade sands and gravels