The results showed that the stirring torque of the molten Al added Ca and Mg has the relativity of time.
熔体铝中加入钙、镁增粘剂的搅拌扭矩表现出与时间相关的特性。
As unnecessaries the luxury possess the trait of long history, high ratio of value and quality and the relativity of time and space.
奢侈品作为非生活必需品，具有悠久的历史、较高的价值质量比和时空的相对性等特点。
As unnecessaries the luxury possess the trait of long history, high ratio of value and quality and the relativity of time and space.
奢侈品作为非生活必需品，具有悠久的历史、较高的价值质量比和时空的相对性等特点。
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