Ether is the smallest of particle, it has two basic attributes: charge and quality, and the charge and quality are fixed value, there were four kinds of Ether particles.
以太是最小的粒子，它具有电荷和质量两个基本属性，而且电荷与质量都是固定的值，共存在四种以太粒子。
This paper introduced the manufactural technology, operating key points and product quality demands of four kinds of haw thorn juice beverages.
介绍了原料山楂汁及浓缩山楂汁，果汁型山楂饮料、果肉型山楂饮料、山楂粉固体饮料的制造工艺、操作要点和产品质量要求。
The new four kinds of subdivision schemes is not only to keep smooth of limit curve, but also has excellent quality of keeping shape of initial polygon.
这一类细分模式在满足极限曲线的光滑性外，还具有保持初始多边形形状的优良性质。
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