A percussion instrument consisting of a metal bar bent in the shape of an open triangle.
由在敞开的三角形结构中弯曲的金属棒组成的打击乐器。
Equivalent triangle structure is constructed with hinged bar elements to precisely simulate the effect of wire rope pulley block in the finite element analysis of structure of construction machines.
在工程机械结构有限元分析中，采用铰接杆单元构造等效三角结构，准确的模拟钢绳滑轮组的作用。
Starting off from the theory of spherical triangle, an analysis was carried out on the relation between component twist angle of spherical four-bar linkage and circuit of mechanism.
从球面三角理论出发，对球面四杆机构构件扭角和机构回路的关系进行分析；
Starting off from the theory of spherical triangle, an analysis was carried out on the relation between component twist angle of spherical four-bar linkage and circuit of mechanism.
从球面三角理论出发，对球面四杆机构构件扭角和机构回路的关系进行分析；
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