词汇	source of value
释义	source of value 价值之源
随便看	variable power variable-power variablepower afocal variable power control variable power controller variable power eyepiece variable power eye piece variable power eye-piece variable power factor variable power laser emission variable-power lens Variable Power Speed Control variable power system variable-power system variable power telescope variable precision variable precision coding compaction variable-precision coding compaction variable precision discernibility matrix variable precision limited tolerance relation variable precision mattrix variable precision model variable precision rough fuzzy set variable precision rough fuzzy sets Variableprecision Rough Set