The TV Tower Spherical Joint and Bar Marking
某电视塔球形节点和杆件的制作
Finite element analysis of the spherical shell with the staggered joint defect
具有错边缺陷球壳有限元分析
Ball joint housing is an outer ring of radial spherical plain bearing, made of zinc base alloy.
球头座为向心关节轴承的外圈, 由锌基合金制成。
Focal length measurement of spherical lens using joint Fourier transform spectrum interference technique
利用联合付里叶变换谱干涉法测量透镜焦距
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