| 1. | It is a short cut to use the free acid .
可走捷径，那就是使用游离的酸。 |
| 2. | Determination of free acid in acid anhydride - based hardeners for epoxide resins
环氧树脂用酸酐基硬化剂中游离酸的测定 |
| 3. | Chemical analysis of fertilizers for import and export . determination of free acid content
进出口化肥检验方法.游离酸的测定 |
| 4. | Plastics - hardeners and accelerators for epoxide resins - determination of free acid in acid anhydride
塑料.环氧树脂用固化剂和促进剂.酸酐中游离酸测定 |
| 5. | En iso 7327 plastics . hardeners and accelerators for epoxide resins . determination of free acid in acid anhydride
塑料.环氧树脂硬化剂和促凝剂.酸酐中游离酸的测定 |
| 6. | Plastics - hardeners and accelerators for epoxide resins - determination of free acid in acid anhydride iso 7327 : 1994 ; german version en iso 7327 : 1997
塑料.环氧树脂固化剂和催化剂.酸酐中游离酸测定 |
| 7. | Taurine ( tau ) , a ? - amino acid containing sulphur , is vital free acid in the body and perform various biological effects
牛磺酸( tau )是一种含硫的-氨基酸，是人体内的一种必需的游离氨基酸，有稳定细胞膜和抗氧化等多种生物学效应。 |
