求翻译：首先采用大孔树脂法将柿子中的儿茶素类物质进行初步分离，再利用高速逆流仪进一步分离纯化柿子中的(-)-儿茶素、(-)-表儿茶素。是什么意思？

First use of macroporous resin will persimmon catechins in the initial separation, re-use of high-speed counter-current device further purified persimmon (-) - catechin ,(-)- epicatechin.

Start with a big hole in the resin will persimmon catechins such substances through a high-speed countercurrent initial separation, purification persimmon further separation of catechins ( - ) - ( - ) -表儿 , quality tea.

First uses the pocket resin law to carry on persimmon's in son caffeine class material the preliminary separation, again uses the high speed adverse current meter further to separate in the purification persimmon (-) - the caffeine, (-) - the table caffeine.

With macroporous resin method first persimmon at the initial separation of catechins such substances, and then using high-speed countercurrent instrument for further separation and purification of persimmon (-)-catechin, (-)-epicatechin.