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.
三角形不透明抽杆夹，配上透明片，轻便、灵活，适用于各种文稿递交。
Triangle opaque clamp, match the transparent sheets, light and flexible, suitable for the presentation of all kinds of documents.
头发固定夹还包括设置在第一和第二夹件之间并连接到其间爪形部分的弹性构件。
An elastic member is disposed between the first and second clip members and connects to the claw portions thereof.
塔平面八角形，外观五层，夹有暗层四级，实为九层。
Tower level octagon, five stories of appearances, insert dark story of four grades, it is nine layers in fact.
塔平面八角形，外观五层，夹有暗层四级，实为九层。
Tower level octagon, five stories of appearances, insert dark story of four grades, it is nine layers in fact.
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