现代人正在努力尝试多样化的、均衡的饮食，以提高生活质量。
People in modern times are trying to have a varied and balanced diet to improve their living quality.
与美国或英国相比，这些国家的研究经费分配往往更加均衡，导致大学之间的质量差距没有那么明显。
Research funding tends to be more uniformly distributed among different universities than in the us or England, creating less obvious differences in quality between institutions.
光栅制作时引入的综合噪音对输出质量的影响及各衍射级能量的不均衡问题尚待进一步改进。
What remain to be improved are the effect of the general noise in grating-making on the output quality and the imbalance of diffraction order intensity.
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