radio opacity的用法和樣例：
例句
用作名詞 (n.)
- Papers can be clay coated for surface smoothness and opacity giving high quality finishes suitable for high quality printing processes.
要得到適於高質量印刷工藝的高品質加工紙，為了表面平滑度和不透明度的需要，紙上可能塗布白土。 - The results showed that fiber coarseness is changed duringbeating,thus greatly affecting the physical properties and opacity of handsheet.
結果表明，打漿能改變纖維的粗度，從而影響手抄片的物理性能和不透明度。
