1) trirectangular trihedral
三直角三面形
2) gle spherical triangle
球面直角三角形
3) right spherical triangle
直角球面三角形
4) trirectangular sphericaltriangle
三直角球面三角形
5) rectangular triangle
直三角形
6) right triangle
直角三角形
1.
Three bearing point of the 3-DOF Parallel Driven Platform adopted the distribution of the right triangle, and calculation and comparison with the other three bearing point of parallel driven platform show that the platform only produces a additional movement of rotating z_axis, and the structure is simple, and easy to r.
该三自由度并联驱动平台的三个支撑点采用直角三角形分布 ,经推算 ,和其它三点支撑的并联驱动平台相比 ,该三自由度并联驱动平台结构只产生绕z轴的附加运动 ,具有结构简单、易实现的优点 。
2.
According to the research of the sides and the integer in a right triangle, this thesis puts forward the subject on the numbers of triangles on condition that the hypotenuse is the odd prime number and the right-angle side is the integer, and then makes a demonstration for it by means of the formula 2n+1=p, and number sequence.
本文通过对直角三角形边与整数的研究 ,提出了斜边为奇素数、直角边为整数时 ,三角形个数的问题 ,并运用 2n + 1=p和数列给出了证明。
补充资料：三直
1.三个直言敢谏的官员。指明代罗洪先﹑唐顺之﹑赵时春。 2.三个直言敢谏的官员。指清代苏廷魁﹑陈庆镛﹑朱琦。
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参考词条