How to pronounce word in English - Learn English free online - protectatin - How to pronounce the english word protectatin in english. Start with S. Learn from me. - www.pronounceword.com

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protectatin. How to pronounce the english word protectatin.Start with S. Learn from me.

protectatin

英语发声

美语发声

网络释义

1、镀锡薄板磷酸铬酸盐溶液浸渍保护法

...protectant防护剂protectatin镀锡薄板磷酸铬酸盐溶液浸渍保护法protection保护、保存、防护 ...

短语

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