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We study a polygon representation composed by the vertex angles and ratios of adjacent edge lengths, which is invariant to geometric transformations such as translation, rotation and scaling. The polygon is globally represented by a scale-invariant intrinsic matrix.

提出了由顶点转角和相邻边长比例构成的多边形伸缩内在量表示的方法，多边形从整体上由一个伸缩内在矩阵来表示，该表示方法具有平移、旋转和伸缩等几何不变性。

In addition to boosting top speed, this 2 Speed Transmission features an adjustable shift point and changeable gear ratios for extra tuning convenience.

此外，以提高最高速度，这2条高速传输功能，可调转向点和复杂多变的齿轮比为额外的调谐方便。

The latter was applied to the fibre in various molar ratios to the dye using two different application procedures: directly in the dyebath and by aftertreatment of the dyed fabrics.

后者是通过纤维在各种染料的摩尔比率用两种不同反应过程：全浴和通过已着色织物的后处理。

Consistency between the odds ratios was presered in analyses by age-group, ethnic background, and geographical location.

优势比在年龄、种族背景、地域分布上存在一致性。

The fresh-keeping effects of Portunus Trituberculatus were investigated. The results showed the efects were better when air components and ratios of MAP were CO2 50% N2 50%. Compared with coating package and MAP, vacuum packing could inhibit the production of melanin in Portunus Trituberculatus gills and legs and prolong storage period effectively at 0-4℃.

结果表明：气调包装气体配比为CO2 50%，N2 50%的保鲜效果较好；但真空包装与气调包装和涂膜包装的保鲜效果相比，0～4℃下，真空包装可有效抑制梭子蟹腮部和足部褐变并延长三疣梭子蟹保鲜期，保鲜效果好于气调包装和涂膜包装。

When adding dianion 5 to aldehyde 4 and using the molar ratios of entry 1, the yield of aldol 3 dropped from 98% to 86%, and 7% of alcohol 7 was formed.

当加入醛酸根5比4，用摩尔进入一日产量3醛从98%下降到86%，而77%的酒精组成。

Molybdenum-glycol complexes synthesized with different alkylene glycols and Mo/alcohol ratios have different acidity and catalytic activity. For the topic reaction, the catalytic activity of Mo-1, 2-ethandiol or Mo-1, 2-propanediol is higher than that of Mo-butanediol.

结果表明，用不同的二醇和不同醇／钼比制备的钼醇催化剂具有不同的催化性能和酸性，用乙二醇和丙二醇制备的催化剂，催化性能优于丁二醇制备的催化剂。

At low HNO3 concentration and dilution factor above 2, 0.1 mol/L DCH18C6/1-octanol extracts very little americium,plutonium and uranium.The distribution ratios of Am、Pu and U increase with the increase of HNO3 concentration in aqueous phase,and decrease with increasing of dilution factor of HLLW.The distribution ratio of extraction of Pu increases with the increase of extractant concentration.

研究结果表明，在低硝酸浓度和较大稀释倍数情况下，DCH18C6对镅、钚、铀的萃取分配比都比较小，并随着水相硝酸浓度的增大而增大，随着模拟高放废液稀释倍数的增大而减小，提高萃取剂浓度会增大四价钚的萃取。

The increase or decrease in expansion ratios of extruded product is influenced by starch types, amylose content, structure and molecular weight of amylopectin.

挤压产品膨化度的高低主要受淀粉类型、直链淀粉含量、支链淀粉的结构和分子量的影响。

Using the photorefractive saturable nonlinearity, we fabricate both types of step and gradient photorefractive phase components through the ways of digital recording and analog recording respectively under different ratios of light intensity I/Id.

利用光折变饱和非线性，首次在不同光强比条件下通过数字和模拟记录两种方式分别制作了阶跃型和梯度型位相元件。

Apllied the data of QuickBird-2——the highest resolution remote sensing,and based on the theory and methodology of fractal geometry,we have quantitatively studied remote sensing lineations in Gaolong gold deposit of Guangxi.

采用Quick Brid-2高分辨率卫星遥感数据，通过分形几何学的盒计维数法，定量研究广西高龙金矿区遥感线性构造。

So, sometimes, to change the color can not be your food (referring to the above-mentioned crustacean) has been a sign of boiling over.

所以，有时，来改变颜色，不能你的食物一直是沸腾了的迹象。