off-standard product的用法和樣例：
例句
- A detailed description of the analytical procedures used to characterize the reference standard.
用於界定標準品的分析程序的詳細敘述。 - Using gallic acid as the standard, the optimum conditions for determining of the polyphenols in the apple pomace by Folin method are investigated.
以沒食子酸為標準品研究了福林法測定蘋果渣中多酚物質含量的適宜條件。
