The coordination atom of the first coordination shell of La in REE-BPS was oxygen whose coordination number was 6 and the average distance among the atoms was 2.52 , and the second shell was sulfur that were 3 and 2.91 respectively.是什么意思_The coordination atom of the first coordination shell of La in REE-BPS was oxygen whose coordination number was 6 and the average distance among the atoms was 2.52 , and the second shell was sulfur that were 3 and 2.91 respectively.在线翻译_英语_读音_用法_例句