1. Scientific development is the expansion of existing knowledge and theories into new fields and it only approaches absolute truth in the process of obtaining more knowledge and truth.
科学是在已有的知识和理论的基础上向新的领域的扩展,在获得更多的知识和真理的过程中,不断向绝对真理迈进。

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2. The absolute hydrogen expansion turbine cycles of air-breathing combined turbo-ramjet engines has the advantages of good performances, simple constructions and reasonable arrangement of cycles.
完全氢膨胀循环吸气式组合发动机性能优越,结构简单,循环布局合理。

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3. The gas permeation power would be dependent on the gas pressure gradient and the gas expansion pressure would be dependent on the gas absolute pressure.
瓦斯的渗透力取决于瓦斯压力梯度,而瓦斯膨胀压力取决于瓦斯绝对压力。

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4. By using the plane wave expansion and finite-different time-domain (FDTD) methods, we can find a larger absolute band gap in the low and high frequency.
通过运用平面波展开方法以及有限差分时域(FDTD)方法进行分析,可以明显地发现,在低频和高频区域增大了光子晶体的光子禁带。

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5. By using the plane wave expansion and finite-different time-domain (FDTD) methods, we can find a larger absolute band gap in the low and high frequency.
通过运用平面波展开方法以及有限差分时域(FDTD)方法进行分析,可以明显地发现,在低频和高频区域增大了光子晶体的光子禁带。

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