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[国外标准] IEC 60754-2-2019 Test on gases evolved during combustion of materials from cables - Part 2 Determination of acidity (by pH measurement) and conductivity

P:2019-12-24 12:03:57

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USSR - Union of Soviet Socialist Republics苏维埃社会主义共和国联盟(前苏联) (0) 投诉

P:2023-09-14 15:39:46

2

有点贵

low-capacity cable - 小容量电缆(线对少的电缆) (0) 投诉

P:2023-09-19 16:00:31

3

relaying - 中继,转播 (0) 投诉

3


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