"The theory about emotion center" is the main thread in ancient Chinese poetics which was carried throught from early Qin dynasty to late Qing dynasty.
在中国古代诗论中，“吟咏情性”、“诗缘情而绮靡”、“披文入情”的“情感中心说”是从先秦到晚清贯穿始终的一条主线。
In this paper, we introduce a CNC machining technique of lettering on taper-surface throught adopting the three-axis CNC and multiple axis indexing mechanism and so on.
使用三轴数控机床和万能分度头等设备，在锥曲面上刻字的数控加工方法，解决了在实际加工中类似零件对多轴数控机床的依赖问题。
Throught practical tests and analyses of research data, some useful conclusions were reached.
通过对实验和研究数据的分析，得出一些有用的结论。
The basic mathematical thought is hidden behind knowledge and technical ability. Throught abstract and summary ability it can be obtained.
基本数学思想隐藏于知识和技能之中，需要经过提炼和总结才能获得。
The basic mathematical thought is hidden behind knowledge and technical ability. Throught abstract and summary ability it can be obtained.
基本数学思想隐藏于知识和技能之中，需要经过提炼和总结才能获得。
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