物流动线，U型动线、I型动线、L型动线、S型动线，对应的英文是什么？找了半天都没找到英文文献

找到一段英文，节选自WAREHOUSE&DISTRIBUTION SCIENCE：

Here are some characteristics of each type of layout:

U-flow configuration

– Receiving and shipping located on same side of the warehouse

– Makes the most convenient locations still more convenient, less convenient

locations even worse.

– Appropriate when product movement has strong ABC skew (that is, when

very few SKUs account for most of the activity)

– Provides dock flexibility for both shipping, receiving: If one experiences a

surge of activity, can make use of additional doors from other function.

– Permits more efficient use of fork lifts: When a forklift reports for an assignment,

he may be given a put away and a retrieval, matched to reduce

dead-heading.

– Minimizes truck apron and roadway

– Allows expansion along other three sides of warehouse.

Flow-through configuration

– Receiving and shipping on opposite sides of the warehouse

– All product flows in the same direction so there is less opportunity for interference.

– Makes many storage locations of equal convenience.

– Conservative design: More reasonably convenient storage locations but

fewer that are very convenient.

– More appropriate for extremely high volume.

– Preferable when building is long and narrow

– Reduces any efficiencies that might be gained from dual cycle transactions