因此，即使略微提高电机的平均效率，都十分重要。
Therefore, even small improvements in the average efficiency of electric motors are significant.
同一吹风比下，主流速度较高的，平均效率及平均换热系数也较高。
Under the constant blow ratio, the higher the mainstream velocity is, the higher the average effectiveness and average heat transfer coefficient are.
注水系统效率由电机平均运行效率、注水泵平均运行效率和管网运行平均效率组成。
Waterflood system efficiencies are made up with the average operation efficiency of motors, water injection pumps and pipe networks.
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