The ultra-short radius radial system (URRS) is a new highly efficient technology of oil recovery.

径向井是一种新型高效的原油开采技术。

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Based on the elbow press loss theory, a short radius elbow was chosen and designed and experiments were made using it.

根据弯管压损理论选择设计了短半径弯管，并对其进行了相关试验。

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Based on the analysis of pump pressure, tension variation, and drilling speed, the existing problems of ultra-short radius side tracking horizontal well were presented.

通过对钻井过程中泵压、张力变化及机械钻速的分析，指出了超短半径侧钻水平井钻井技术存在的主要问题。

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Their killing and the exchange of gunfire that led to the shooter's death occurred in "a relatively short duration of time, " added Petucci, and physically all within a 1.5-mile radius.

CNN: 4 dead, including shooter, in central Pennsylvania