B302 lithopone: white paint, zinc sulfide content of 28 percent, after surface treatment than the B301 have a better dispersion.是什么意思_B302 lithopone: white paint, zinc sulfide content of 28 percent, after surface treatment than the B301 have a better dispersion.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句