The effects of the variations of the ingredients of the sand reinforced magnesium oxychloride gelatin composites on their flexural properties have been investigated.是什么意思_The effects of the variations of the ingredients of the sand reinforced magnesium oxychloride gelatin composites on their flexural properties have been investigated.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句