以相贯线为例说明了多媒体课件动画素材的制作方法。
With the intersection line as an example, this text introduced the method of making flash materials for the courseware.
这个就是我们在45页中加上超量素材说明的原因。
That's why we put an explanation of Xyz Materials on page 45.
产品说明：1、吸汗透气性佳，且属天然素材。
Description: 1. Attracts the perspiration permeability to be good, and is the natural source material.
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