容积范围 meaning in Chinese

bounding volume

Hydraulic fluid power - gas - loaded accumulators with separators - range of pressures and volumes , characteristic quantities and identification
压力和容积范围特征量及标识
Hydraulic fluid power - gas - loaded accumulators with separator - ranges of pressures and volumes and characteristic quantities
液压传动隔离式充气蓄能器压力和容积范围及特征量