So finding a more useful way to evaluate the reflectivity of absorbing materials is very significant. Arch method is an important way for measuring it.
这就需要找到一种能较为准确的衡量吸波材料反射率的方法,弓形法是被国内外推荐的测试吸波材料反射率的主要方法,该方法简单实用,并能对吸波材料的反射率进行较准确的测量。
参考来源 - 微波反射率弓形法测试技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The practices showed that the suspension arch method of drifting is an effective way of drifting in unstable strata.
实践证明，悬拱法是不稳定岩层中平巷掘进的有效施工方法。
Based on the theory of rock mechanics and the principle of drifting, the author proposed the suspension arch method of drifting in unstable strata.
本文在总结先拱后墙平巷掘进经验的基础上，根据岩石力学理论和平巷掘进原理，提出了平巷掘进的悬拱法。
The stress analytic method of arch dam covers pure arch method, arch beam sharing method, finite element method, calculating method of shell theory and structural model test method.
拱坝的应力分析方法包括纯拱法、拱梁分载法、有限元法、壳体理论计算方法和结构模型试验法。
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