泵的水平入口管变径时，应选用偏心异径管。
Pump inlet pipe diameter changes when level, should choose eccentric different-diameter pipe.
偏心异径管两端管口圆周内切，一般用于水平的液体管道。
Eccentric different-diameter pipe tube ends in circumference, commonly used for liquid level of pipeline.
当需要增大或者减小所有泵吸入口处的管道尺寸，平面一侧朝上安装时，应使用偏心异径管。
Eccentric reducers shall be used when necessary to increase or decrease the line size at the suction to all pumps, install flat side on top.
模型考虑了注汽管线上各种阀门、弯头、补偿器、异径管的影响，考虑了变注入工况和注汽管偏心结构对热损失的影响。
The following factors were considered in heat loss calculating model, namely various valves, elbows, compensator, tube diameter, various injection conditions and injecting pipe's eccentric structure.
模型考虑了注汽管线上各种阀门、弯头、补偿器、异径管的影响，考虑了变注入工况和注汽管偏心结构对热损失的影响。
The following factors were considered in heat loss calculating model, namely various valves, elbows, compensator, tube diameter, various injection conditions and injecting pipe's eccentric structure.
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