为了避免传统的权值确定方法所带来的主观性影响，将粗糙集理论引入可拓权重系数的求解过程中，使权系数问题转化为属性重要度评价问题。
To avoid the excessive subjectivity influenced by the conventional determination methods of weight factor, the rough set was introduced to the solution of the weight factor in the extenics evaluation.
岩体的可灌性不仅取决于受灌裂隙的初始开度，还与在灌浆压力作用下裂隙的弹性扩张值有关。
The groutability of jointed rock should be increased by the grouting pressure because of the elastic expansion of grouted fractures.
也就是说粗研时增大研磨压力可减小工件已加工表面粗糙度值。
It means that in rough lapping the value of machined surface roughness can be reduced with lapping pressure increasing.
光亮碳高的煤粉用于型砂，可降低铸件表面粗糙度值。
The use of coal-dust with high lustrous carbon in molding sand can improve surface roughness of the castings.
该激光器的偏振度可以保持在0- 100%的随意值上，可以输出普通偏振激光，也可输出低偏振度的消偏振激光。
The degree of polarization of laser can be remained above value of 0-100% to output common polarized laser or depolarization laser with low degree of polarization.
该激光器的偏振度可以保持在0- 100%的随意值上，可以输出普通偏振激光，也可输出低偏振度的消偏振激光。
The degree of polarization of laser can be remained above value of 0-100% to output common polarized laser or depolarization laser with low degree of polarization.
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