现在推理论证的材料是可能性和迹象，我们可以看到它们分别对应着一般为真的命题和必然为真的命题。
Now the materials of enthymemes are Probabilities and Signs, which we can see must correspond respectively with the propositions that are generally and those that are necessarily true.
本文结合“通过仪礼”的相关理论，引用大量的材料详细论证了门在传统婚礼中的三种文化内涵：祈求幸福平安、祈求生育和门户观念，揭示出与之相关的各个民俗现象背后的深层涵义。
This paper firstly demonstrates the three cultural connotations of the DOOR in the traditional wedding, these are:the concept of the family status; pray for safety and pray for procreate.
从几何光学理论证明了，在左手系材料（负折率材料）透镜中存在完善聚焦的概念。
The perfect focusing concept is proposed in lenses made of Left handed materials (or negative index materials) by means of geometrical optics.
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