释义 |
Kera ˈkerə COCA⁹⁸¹¹⁶ 基本英英例句 =keratitis 角膜炎
Noun: a Chadic language spoken in Chad From the internal and external corrosion prevention, writer discussed material selection and corrosion prevention of Kera-2 gas gathering and transmitting system. 本文从内防腐和外防腐两个方面,探讨了克拉2气田内部集输管线的材料选择和腐蚀防护问题。 cnki |