chemical polishing的用法和樣例：
例句
- The result concludes that the polishing solution is innocuous and harmless to the environment.
結果表明，經化學拋光后的銅及其合金表面光亮，達到鏡面效果。 - After its angles have been beveled, guaranteeing a neat fit with the case, the sapphire crystal is chemically polished on both sides.
對鏡面邊緣進行斜削，以確保其與錶殼的精確配合，再將兩面進行化學拋光。
