立面是一个由三角形结构组成的自支撑折叠系统。
The façade consists of a self-supporting folding system made of triangles.
由在敞开的三角形结构中弯曲的金属棒组成的打击乐器。
A percussion instrument consisting of a metal bar bent in the shape of an open triangle.
考虑一类具有三角形结构和参数未知的不确定性非线性系统(1)。
A class of uncertain nonlinear systems (1) with a triangular structure and unknown parameters is considered.
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