心形镀白金色夹式耳环给你增添一点小浪漫。
Add a touch of romance with this heart-shaped pair of rhodium-plated clip earrings.
深沟球轴承浪形保持架，按新参数设计存在夹球问题。
There was a problem of clamping ball in designing deep groove ball bearing cage according to new parameter.
用高精度三角形板单元有限元程序研究多种正交各向异性材料开圆孔或开方扎夹支方板的自由振动。
The free vibration of orthotropic clamped square plates with a circular or square hole is studied with the help of the program using the high-precision triangular plate bending element.
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