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[国外标准] NFPA 262-2019 Standard Method of Test for Flame Travel and Smoke of Wires and Cables for Use in Air-Handling Spaces

P:2023-08-30 14:43:16

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single-polarization chemical vapor deposition - 单偏振化学汽相沉积法 (0) 投诉

P:2023-09-05 13:21:04

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emergency stop - 紧急停车 (0) 投诉

P:2023-09-06 07:34:54

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ink - 墨水,油墨(电缆线芯颜色标志用) (0) 投诉

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