subacid

1. The jojoba essence can get rid of the fine wrinkles, rebuild the natural subacid Waterlipid membrane and prevent the external excitant and harm.
   荷荷芭精华，有效平扶幼纹、细纹，重构肌肤天然微酸水脂膜，抵防外境刺激伤害。
2. SeO 2 can dissolve in water to form subacid Se, which is a bi-strong acid.
   SeO2溶于水生成亚硒酸，属中等二元强酸。
3. The pKa value of genistein was 7.9942. CONCLUSIONS Genistein is a kind of subacid and fatsoluble drug.
   pKa值7.9942。结论：染料木黄酮为弱酸性脂溶性药物。

adj

1. slightly sour to the taste