精选高精度同心滚齿钢轮铜乡里撕膜，具有不易打滑、不易脱齿、不易变形、超长无间距特点。
High precise concentric gear and steel roller for removing film, which can avoid skid, distortion and clearance.
精选高精度同心滚齿钢轮铜乡里撕膜，具有不易打滑、不易脱齿、不易变形、超长无间距特点。
High precise concentric gear steel roller for removing film, which can avoid skid, distortion clearance.
通过求解同心套管包围的带n - 1个同心支承板传热管的运动方程，导出计算挤压膜阻尼和粘滞阻尼的公式。
The formulas of the squeeze film damping and viscous damping are derived by solving the motion equation of a heat exchanger tube enclosed in a concentric sleeve with (n -1) concentric support plates.
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