larch extract

• 落叶松栲胶

larch extract的用法和样例：

例句

1. The high sulfitated larch bark tannin extracts are more available to decrease the solution viscosity than the alkali treated extracts.
   高度亚硫酸化的改性落叶松栲胶相比碱处理的改性落叶松栲胶更有效地降低其黏度和相对分子质量。