Tīmeklis第1号:pet(聚乙烯对苯二甲酸脂) 这种材料制作的容器,就是常见的装汽水的塑料瓶,也俗称“宝特瓶”。 常见矿泉水瓶、碳酸饮料瓶等 。耐热至70℃易变形, 有对人体有害的物质融出。1号塑料品用了10个月后,可能…
可溶性聚四氟乙烯_百度百科
Tīmeklis2013. gada 2. maijs · 2013-05-02 · TA获得超过2102个赞. 关注. 是的,因为铁素体的英文Ferrite,而珠光体的英文Pearlite,工程材料中取其开头字母作为简写. 27. 1) 举报. … Tīmeklis2016. gada 18. okt. · Iron–nitrogen on carbon (Fe–N/C) catalysts have emerged as promising nonprecious metal catalysts (NPMCs) for oxygen reduction reaction (ORR) in energy conversion and storage devices. It has been widely suggested that an active site structure for Fe–N/C catalysts contains Fe–Nx coordination. However, the … jonathan s berek
Univerza v Ljubljani, Fakulteta za elektrotehniko
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