Pectin with high molecular weight can be used to prepare supersonic centrifuge membrane and electric osmotic membrane because of its better gelatification.
高分子量果胶因具有良好的胶凝特性，可用于制备超速离心膜和电渗析膜。
The membrane cannot maintain the osmotic balance of nutrients (sugar) inside the yeast cell and the by-products (alcohol) outside.
渗透膜不能保持营养平衡(制糖)酵母细胞内的副产品(乙醇)之外。
Therefore, osmotic phenomenon exists in the system of shale and water based fluid, but shale is a non-perfect semipermeable membrane.
试验结果证实了页岩与水基流体之间存在着渗透现象，且页岩是一个非理想性的半透膜。
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