JT T 1125-2017 《落锤式弯沉仪》.pdf

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ASTM E2583-2007(2015) Standard Test Method for Measuring Deflections with a Light Weight Deflectometer (LWD)《使用轻型落锤式弯沉仪 (LWD) 测量挠度的标准试验方法》.pdf

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