On that basis, the vertical lapse stack source, energy concentrated bullet and explosive seismic hammer source have been developed.
在此基础上，研制了垂直延迟叠加震源、聚能弹震源和爆炸地震锤震源。
The commonly used alloy hammer of vertical impact crusher has poor quality, short life and large consumption, affecting the equipment availability.
常用立式冲击破碎机合金锤头质量差，使用寿命短，消耗量大，影响了设备的运转作业率。
The perfect hammer head can be obtained by designing technological equipment, using vertical pouring and string casting process in CO2-sodium silicate sand.
采用CO2硬化水玻璃砂无箱立浇串铸工艺，设计工装，可以获得优质健全的锤头产品。
The perfect hammer head can be obtained by designing technological equipment, using vertical pouring and string casting process in CO2-sodium silicate sand.
采用CO2硬化水玻璃砂无箱立浇串铸工艺，设计工装，可以获得优质健全的锤头产品。
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