求翻译：All the prior art cited above is believed to form the basis of commercially available hydrocolloid dressings and skin barriers. But in spite of the very considerable effort expended, it has heretofore not been possible to prepare an integrated hydrocolloid composition which has the absorption rate of a non-integrated c是什么意思？

待解决 悬赏分：1 - 离问题结束还有