英汉例句雙語例句The adhesive of table tennis racket which was solubility was produced by modified PVA using nano-silica.採用聚乙烯醇（ PVA）爲基料，用納米二氧化矽對其進行改性，制備出了成本低、無毒、 水溶性的乒乓球拍膠粘劑。