isosceles trapezoid.
等腰梯形小孔
The Design of Isosceles Trapezoid Welded Pipe Roll
等腰梯形焊管孔型设计
Cross Wing of Diamond Wing Profile and Isosceles Trapezoid Wing Surface for Course Correction Fuze.
弹道修正引信菱形翼型等腰梯形十字减旋翼
KANTROVICH SOEUTION FOR THE PROBLEM OF BENDING OF SKEW ANGULAR PLATTE AND PLATE OF ISOSCELES TRAPEZOID
斜角板与等腰梯形板弯曲问题的康托洛维奇法
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