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难溶性

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In acid and alkali soil, there are mainly indissoluble bivalent or trivalent phosphates, which cannot be utilized by plants.

在酸碱性土壤中,磷主要以植物难以吸收利用的难溶性二价或三价阳离子的形式存在。

The properties of anhydrite Ⅱ with white protland cement as accelerating agent are studied,and the durable stucco gypsum in outdoor condition are prepared successfully.

研究白水泥等作激发剂的难溶性无水石膏的性能,并制备出用于室外条件下的耐久型粉刷石膏。

It was estimated that more than 80% of applied P fertilizer become sparingly soluble phosphate and retained in calcareous soil.

据估计,在石灰性土壤中约有80%的磷肥以难溶性磷酸盐存在。

In paddy soils,a better response to magnesium fertilizer was found in milk vetch than in the suc- ceedi...

难溶性镁肥在酸性红壤上的效果很好,但在接近中性的红壤旱地上,最好施用速效性镁肥以保证作物苗期的镁素供应。

Firstly, the mechanisms and kinetics of drug absorption was determined in a perfused rat intestinal model.

提高难溶性药物的溶出速度和体内吸收率,一直是现代药剂学研究领域中的重要任务。

The results of perfused rat intestinal model showed that nitrendipine could be well absorbed at all segments of intestine in rats.

提高难溶性药物的溶出速度和体内吸收率,一直是现代药剂学研究领域中的重要任务。

The replacement of toxic and volatile organic solvents as reaction media or an efficient catalyst with environmentally acceptable alternatives are an area of tremendous importance in modern organic synthesis. Basing the review about solid-phase synthesis with simple separation, the liquid phase organic synthesis supported by the solution polyethylene glycol and the chemical reactions in the medium of PEG, herein we are going to study the synthesis of 1-amidoalkyl-2 -naphthols in presence of the solution catalyst or the solid catalyst and the synthesis of thiourea in PEG-400 medium.

难溶性载体试剂参与下的固相合成使分离操作简单易行;可溶性聚乙二醇支载下的液相合成显示出液相反应的稳定高效性,同时兼顾大分子聚合物容易沉降分离的优点;无毒且稳定的小分子PEG作为反应介质,往往表现出醚和醇的双重性质和功能。

Results and Conclusion: Self-emulsifying drug delivery system will have a very good prospect in pharmaceutics for these poorly soluble in water and lipophilic drugs.

结果与结论:自乳化药物传递系统对亲脂性和水难溶性的药物是一个非常有前景的新型载体系统。

Self emulsifying drug delivery systems is a new potential delivery system for lipophilic or poorly soluble drugs.

自乳化药物传递系统对于亲脂性和难溶性药物是一个非常有希望的新型载体系统。

Objective: To improve the dissolution rate of a poorly watersoluble drug, tanshinone.

中文摘要:目的:提高难溶性药物丹参酮的体外溶出度。

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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失

But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.

但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。