常見(jiàn)例句雙語(yǔ)例句Natural pigment in grain layer of goat skin and pig skin was bleached by hydrogen peroxide and ultrasound.探討了採(cǎi)用過(guò)氧化氫及超聲波除去山羊皮及豬皮粒麪層色素的方法。 返回 bleached layer