The screw consists of core spindle and several hollow screw segments which can be replaced easily for different materials.
该螺杆由芯轴和几个空心螺杆段组成，对于不同的物料，只需更换其中某些空心螺杆段即可。
As the core parts for high speed spindle, the dynamic properties of Angle contact ball bearing has important effect on cutting performance and machining precision of whole machine.
角接触球轴承作为高速主轴的核心部件，其动力学特性对整机的切削性能和加工精度有重要的影响。
The core pulling method has the advantages of small core pulling difficulty, simple spindle structure, low cost and no damage to the composite pipe;
本发明方法具有抽芯困难小，芯轴结构简单，成本低，不伤及复材管件的优点。
O-ring of the spindle or core hole of body is damaged.
轴心使用O 环受损或主体心孔损伤。
There may be one electric generator, which generates electricity when the core shaft rotates the saw blade and the laser spindle.
该激光心轴可包括一发电机，一心轴转动锯片和激光心轴时该发电机发电。
The hollow spindle covering machine is applicable to the coverings of bicomponent core yarns such as the covering of a bicomponent core yarn formed by a non-elastic core yarn and an elastic core yarn.
它适用于双组分芯丝包覆，例如一根非弹性芯丝和一根弹性芯丝组成的双组分芯丝包覆。
It is found out that:(1)the rating-scale of the Star Hotels in Wuhan City is a spindle structure, and their spatial distribution reveals to be a core-peripheral structure;
结果表明：（1）武汉市星级饭店在等级规模上表现为纺锤形结构，在空间分布上呈现出核心-边缘结构；
It is found out that:(1)the rating-scale of the Star Hotels in Wuhan City is a spindle structure, and their spatial distribution reveals to be a core-peripheral structure;
结果表明：（1）武汉市星级饭店在等级规模上表现为纺锤形结构，在空间分布上呈现出核心-边缘结构；
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