The result indicated That the abutment pressure distribution form was similar to that of slicing mining method but its magnitude and affecting range changed.
结果表明，放顶煤采煤法其支承压力分布形式与分层开采法类似，但在量值及影响范围上有增减。
In this paper, friction field distribution between sliver and pressure bar on a homebred drawing frame is analyzed, and on this basis, the best range of contact arc is deduced.
本文以国产并条机为例，分析了并条机上须条与压力棒上摩擦力界的分布，并进一步推导出了须条对压力棒包围角度的最佳范围。
In the last several decades, due to destruction of habitat and hunting pressure, the distribution range and population size of this muntjac have been continued declining.
近几十年来，由于栖息地受到严重破坏，以及滥捕猎杀等原因，黑麂野生种群的分布范围和数量逐渐缩小。
应用推荐