筒夹是一种夹持刀具或工件的锁紧装置，通常用在钻铣床和加工中心上。
万向节安装到这个钟曲柄和OSS芒筒夹的应用。
This universal joint mounts to the bell crank and OSS Mount collet.
卸刀时严谨敲打筒夹及刀头。运输、保管及使用中严谨磕碰、敲击、撞击电主轴轴端。
No beating the collet and cutter head in the process of unloading knife. No bumping, peening, striking the shaft end during the process of transporting, storing and using.
针对钢筋混凝土框筒夹层结构，运用ANSY S软件，建立三维有限元模型进行了振型分析，得出了该结构的自振特性；
According to the reinforced concrete framed tube building, a three-dimension FEM model is built up by using software ANSYS.
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