求翻译：开发高效滚齿刀具，研发刀具涂层材料和技术，扩大硬质合金、CBN刀具的应用；开发材料切除率高、寿命长、修整频率低的磨齿砂轮是什么意思？

Development of efficient hobbing tools, research and development tool coating materials and technologies, expand carbide, CBN cutting tool applications; development of material removal rate, long life, low frequency of dressing grinding wheels

developing highly efficient hobbing cutters, R&D knives coating materials and technology to expand Cemented carbide, CBN knives; development of application materials removed, long life, high rate of 187,600 low frequency grinding gear wheel

Develops the highly effective gear cutting tool to have, researches and develops the cutting tool coating material and the technology, the expanded hard alloy, the CBN cutting tool application; The development material excision rate high, the life long, the conditioning frequency low rubs the tooth

Developing efficient hobbing cutter, research and development of cutting tool coating materials and technologies, expanding the application of carbide, CBN cutting tool; development high material removal rates and long life, dressing low frequency of grinding wheel

Develop and roll the tooth cutter high-efficiently, research and develop the cutter and coat material and technology, expand the applications of hard alloy, CBN cutter; It is high, long-lived and repairing the low rubing the tooth emery wheel of frequency to develop the excising rate of the material