GB/T 4934.2-2008
InstruMent for soil test - Shear apparatus - Part 2:Field vane shear apparatus 土工试验仪器 剪切仪 第2部分:现场十字板剪切仪 |
GB/T 8570.1-2008
DeterMination of liquefied anhydrous ammonia - Part 1: Taking a laboratory sample 液体无水氨的测定方法 第1部分:实验室样品的采取 |
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