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ISO 7267-3-2017 膠輥--表觀硬度的測(cè)定--第3部分：Pusey-Jones法 Rubber-covered rollers — Determination of a...2024-02-03

DIN EN ISO 643-2020 Steels - Micrographic determination of the apparent grain size (ISO 643:2019, Corrected...2023-08-04

ASTM D167/D167M-2020 Standard Test Method for Apparent and True Specific Gravity and Porosity of Lump Coke2023-07-12

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龍永煤田CSAMT法找煤應(yīng)用2020-09-18

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