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1·Protein dispensability has great relevance for our understanding of evolution, cellular molecular physiology and disease.

基因重要性对于我们理解物种进化、细胞生理以及疾病发生有很大帮助。

2·A lot of research need do because it is difficult to resolve the problem of uneven dispensability of nano-particles in polymer.

但如何解决纳米粒子在高分子基体中难以均匀分散的问题，仍需要做大量的研究工作。

3·The fundamental parameter method of X-ray fluorescence analysis has many advantages, such as no concentration range limitation of elements, dispensability of standard samples and so on.

本文叙述了利用基本参数法校正源激发合金元素荧光分析的基体效应的基本原理、基体效应的修正方法。