不过，这项研究的确已经考虑到了很多因素，例如年龄、人群密集度和受教育程度等。
But the study did account for a variety of factors, including age, body mass index and education.
为了寻求更高质量和密集度的WD M器件，对体全息技术制作WD M器件的新方法进行了研究。
For getting superior quality and denser WDM device, a new method to make demultiplexing device with volume holographic technology is studied.
本文在理论计算分析和试验研究的基础上提出了提高无控火箭密集度的一个途径，即阶梯推力方案。
On the basis of theoretical calculation analysis and experiment research, the paper proposes a new raising non-con-control rocket distrubution way. which is a step propulsion plan.
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