针对加工中心研制了主轴锥孔陶瓷衬套，使机床的性能得到改善。
Taper ceramic bushing for spindle is developed for machining center, so that the performance is improved.
主要从陶瓷过滤片的过滤效果、过滤速度、强度和生产成本等几个方面，阐述了直孔陶瓷过滤片和泡沫陶瓷过滤片的区别。
The present paper comprehensively introduced the difference between extruded ceramic filter and foam filter through filtration efficiency, consistent flow rate, good strength, high capacity and costs.
利用水溶型芯和陶瓷型芯，我们可以铸出更深的孔。
Deeper holes can be casted by using soluble cores and ceramic cores.
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