论小过卦的过与不及&析小过卦卦爻辞具有装置效率高，水力损失小，过流能力大，机组结构紧凑，水工布置简单，土建和运行费用低等优点。
Tubular pumps have high pumping devices efficiency , small hydraulic loss , strong discharge capacity , compact units structure , simple construction arrangement and low cost both for construction and running .
小过卦