因同样的理由，肽类免疫应答常因缺乏适当的辅助T淋巴细胞(HTL)而引导出不充分的细胞毒素T淋巴细胞(CTL)和抗体反应。
For the same reason, peptide immunizations often elicit inadequate cytotoxic t lymphocyte (CTL) and antibody (Ab) responses due to the lack of appropriate helper t lymphocyte (HTL) activity.
扩链剂的用量存在最佳值，用量不足时偶联反应不充分，用量过量时封端反应加剧。
There existed an optimal dosage of the chain extender, lack of which caused deficiency of chain extension and excess of which led to more blocking reaction.
NCO与水的反应、多异氰酸酯难于在多元醇中的分散均匀以及组份间分子链扩散交联不充分，是研究水性双组份聚氨酯的关键问题。
The reaction between -NCO and water, dispersion of polyisocyanates in polyols, and complete diffusion among different kinds of molecules are key problems to be solved in 2k-WPU.
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