The matrix pores in coal play a little role in fluid flow, therefore the permeability derived from well test is the reflection of the percolation flow capacity in cleat system.
煤基质的孔隙性对流体流动影响极小，试井所得渗透率反映的是割理系统的渗流能力。
This paper discusses the errors in verification system of small volume measurement instrument, and gives a detailed analysis on the test ways of small capacity measuring instruments.
本文论述了小容量计量器具检定系统存在的误差问题，并详细的分析了小容量计量器具的验定方式。
The paper discusses some aspects on battery test and management by the medium and large UPS system, introduces the calculation on battery capacity configuration.
本文论述了UPS系统的蓄电池监测管理的几个方面，以及蓄电池容量的合理配置计算。
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