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off the planle to transport the ma chine on the inckned plane of is analyze by dint,after carying on the dontrol the department pdres off the planle planle to transport the maohine fall.

以千秋矿21121综放面为例,通过对液压支架和前后刮板运输机在综放面倾斜方向上的受力分析,进行控制液压支架与前后刮板运输机下滑的研究,介绍了综放工作面控制液压支架与前后刮板运输机下滑的技术,经济易行,安全可靠,值得在类似条件下推广应用。

That this text passes the research to the empress department pares off the plank to transport the machine on the inclined plane of is analyze by dint, after carrying on the control the department pares off the plank to transport the machine fall.

通过对后部刮板输送机在综放面沿倾斜方向上的受力分析,进行控制后部刮板输送机下滑的研究,介绍了大倾角综放工作面利用液压支架控制刮板输送机下滑的技术,加工制造简单,经济易行,安全可靠,值得在类似条件下推广应用。

Through practical and scientific analysis of floor downslide on steep seam,the authors suggest making a rational layout of working face and changing mining method to control floor downslid

针对急倾斜煤层底板下滑的现象,通过实践和科学的分析,采取合理地布置工作面和改变开采方法等,使底板下滑得到防治。

Mechanical model of single-support downslide and multi-support downslide as well as the problem of the tipping resulted from the downslide of the support are studied.

对大采高支架单架下滑、多架下滑力学模型,以及由于支架下滑而发生支架倾倒的问题进行了研究。

slip descending lash and vibration of suspension load in the usual engineering mechanical hydraulc pressure equilibrium circuit.

工程机械常用的液压平衡回路 ,存在着悬垂负荷再提升下滑和下降冲击、振动的问题。

On the basis of characteristics of surface physical chemistry of greenhouse cover and condensation water,critical angles when slipping and not dripping have been studied and curves re-lated contact angle with slipping and dripping critical angle have been obtained.

根据塑料大棚覆盖材料和冷凝水珠的表面物理化学特性，分析研究了冷凝水珠下滑下滴临界角，获得了冷凝水接触角与冷凝水珠滴滑临界角的关系曲线，为塑料大棚结构的改进和覆盖材料的研究提供了依据和参考。

On decline in distribution amount of comprehensive medical periodicals;

对综合性医学期刊发行量下滑的思考

Causes for drop were analyzed and the corresponding solutions were given for promoting the middle-distance run in Henan theoretically.

运用文献资料法、问卷调查法、测试法和数理统计法,对河南省及我国部分省市的中长跑有关情况进行研究,分析河南省中长跑运动水平下滑的原因并提出相应的对策,为河南省中长跑运动水平的提高提供理论参考。

This essay made a further analysis on the performance of the two basketball teams, Uqandan winner-way and Benqsinalion in 2002-2003 CBA season, by comparative analysis , reference data and statistics, which resulted in the reasons that made Uqandan winner-way s rising and Beqsinalion s dropping in the final score list.

采用文献资料、数据统计和对比等方法对 2 0 0 2～ 2 0 0 3年CBA联赛中的广东宏远队和新浪明基队进行分析 ,得出宏远成绩的上升和新浪明基下滑的原因 ,并提出了相应的建议 ,为提高甲A各队的技战术水平提供参考。