While holding Alt create another elliptical selection so that you would subtract the original selection to leave you with the thickness of the outer button's light as shown in the illustration below.
在创建另一个椭圆选区时按住 Alt 键，这样就能用这个圆减去原来那个外圆，于此你就得到下面展示的示意图那样的按钮灯外环厚度。
The results show that the corona resistance time of hybrid film is much more than the original one and the time rose nonlinearly along with the thickness of the film.
结果表明纳米杂化聚酰亚胺薄膜比原始薄膜的耐电晕时间长很多，并且随薄膜厚度的增加耐电晕时间成非线性增加。
The influence of different covered depths, thickness of frozen wall, excavating radius, original water content and brine temperature on frost displacement are discussed for horizontal freezing model.
探讨了在水平冻结情况下覆盖厚度（埋深）、冻土壁厚度、开挖半径、含水量和盐水温度对冻胀位移的影响。
Concentric folding preserves the thickness of each bed as measured perpendicular to original bedding.
同心褶皱保持各岩层的厚度与在原始层理垂直的方向上所测得的相等。
Original material milling's linear board needs feeding in large scale riser because there are many differences in thickness.
原料磨衬板壁厚相差大，需要大冒口补缩。
We could determine the overburden thickness by contrast the electric property difference of the underlying original rock and the overburden.
该方法可利用覆盖层与下部基岩存在的电性差异来测定覆盖层的厚度。
Finite element analysis shows that the lateral stiffness of the concrete grill wa ll can be calculated by an equivalent solid shear wall with the thickness of two third of the original wall thickness.
有限元分析结果表明，保温砌模混凝土墙的抗侧刚度可用厚度为其三分之二的等效实体墙计算或用小开口整体墙计算。
In addition, this paper presents how the diameter reducing rate, the die semicone angle, the friction coefficient and the original wall thickness influence the buckling and the axial elongation rate.
并分析了缩径率、缩径凹模半锥角、摩擦系数、缩径管坯初始壁厚对管端翘曲和轴向伸长率的影响规律。
Smoothest approximation method, with high precision and capacity of keeping concave and convex feature of original outlines, is used to deal with the derivative discontinuity of gas film thickness.
对于一阶导数间断的物理量——气膜厚度采用高精度保凸性磨光法进行处理。
This year, the original is not much pride to suppress, and the thickness of the original not the courage to thinning, and the original is not completely wiped out clear objectives.
今年，原来没有多少骄傲压制，而不是原来的勇气厚度变薄，原不完全消灭了明确的目标。
Analyzing the characteristic of the thickness change and coal seam formation, realize the geological original cause of coal seam thickness change.
分析煤层厚度变化的特点及煤层厚度变化的地质成因。
Analyzing the characteristic of the thickness change and coal seam formation, realize the geological original cause of coal seam thickness change.
分析煤层厚度变化的特点及煤层厚度变化的地质成因。
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