萃取率的上升是因体系物理性质发生变化而造成。
It is the change of physical properties of system that makes the extractability increase.
物理性质的描述，包括颜色和物理形态。
A physical description of the material, including its color and physical form.
因为其特殊的光物理性质，引起我们对它研究的兴趣。
Because its unique photophysical property, and arise our interest to this research.
新型导热材料石墨泡沫具有很好的热物理性质。
The new material of graphite foam is a good thermal-conductivity material.
在凝胶的过程中，聚合物的物理性质发生巨大的变化。
There is a dramatic physical change that occurs during the process of gelation.
与物体表面亮度的主观感觉相对应的客观物理性质。
The objective physical property corresponding to the subjective sensation of the brightness of a surface.
本文首先对壳聚糖的物理性质进行测定。
The first work of this paper is measuring physical properties of chitosan.
统计了物理性质参数和力学性质参数的变异系数。
Then coefficients of variability of physical and mechanical parameter are given.
并介绍了该类化合物的结构特点，制备方法和物理性质。
Moreover, the structure characteristics, manufacturing method and physical function were introduced.
研究了废弃印刷线路板的主要成分在机械处理过程中的物理性质的变化。
The variety of physical properties of PCBs during mechanical treatment has been studied.
无理性的状态或性质。
介绍了天然气水合物(NGH)的结构及物理性质。
This paper introduces the structure and physical property of, natural gas hydrate (NGH).
在材料选择时必须考虑材料的物理性质和机械性能。
The physical property and mechanical performance must be considered when selecting the valve material.
在材料选择时必须考虑材料的物理性质和机械性能。
The physical property and mechanical performance must be considered when selecting the valve material.
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