常见例句monium peroxoy-chromate ammonium perchromate 過鉻酸銨ammonium peroxoy-chromate ammonium perchromate 過鉻酸銨potassium perchromate 過鉻酸鉀ammonium perchromate 過鉻酸銨sodium perchromate 過鉻酸鈉 返回 perchromate