The cutter of the coal mining machine bears dynamic load varying with time during excavating coal.
采煤机截齿截割煤体时，截齿承受随时间而变化的动载荷。
On-way distribution of dust in the full face mining was researched during the process of coal mining machine cutting coal.
研究采煤机在割煤落煤过程中，粉尘在综采工作面的沿程分布情况。
Market analysis and economic profit forecast: the project product is the kernel device of coal mining machine with great market demand.
市场分析及经济效益预测：项目产品为采煤机的核心设备，市场需求量大，市场广阔。
Market analysis and economic profit forecast: the project product is the kernel device of coal mining machine with great market demand.
市场分析及经济效益预测：项目产品为采煤机的核心设备，市场需求量大，市场广阔。
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