Through the analysis of Guizhou coal resources' occurrence status, the paper points out the characteristics of the occurrence condition of Guizhou coal resources and the mining technical requirement.
通过对贵州省煤炭资源赋存状况的分析，找出煤炭资源赋存条件和开采技术条件的特殊性。
Through comparison analysis on actual operation performance of local fan for mine, and the requirement of local fan performance is identified further.
通过对矿用局扇的性能试验研究和实际运行性能对比分析，进一步明确了对局扇运行性能的要求。
The output of the part was large so that the requirement for identical dimension was high. Through analysis of clamp structure, forming process was determined.
该零件产量较大，对尺寸的一致性要求高，通过对该夹簧零件结构和成形工艺的分析，确定该零件成形过程。
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