Adjust balancing valve until pressure differential gauge reads pressure drop required for desired flow rate gpm 调整平衡阀直到压差表读出压降符合所要求的流量(加仑/分钟)为止。
Compensation for changes in loss as a cable ' s temperature varies . its purpose is to adjust equalization so that the flat frequency response is maintained as the temperature changes 补偿在温度变动时电缆中的损耗。其目的是调整平衡以致于在温度变化时也能得到平稳的频率响应。