It is designed specifically to replace a solid body type centralizer for casing running applications and severe well geometries when run in horizontal, long ERD, J-type, S-type and other well designs.

该扶正器最初的设计目的在于替换固体式扶正器，用于下套管作业，以及复杂井身结构，如水平井、大位移井、J -型井、S -型井和具有其他井身结构设计的井。

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One is that the emerging markets are emerging, and by that I mean that there's a very long and well-demonstrated process in history that's kind of an inverted J curve.

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J's publications cite the risk that the expectation of a long period of low interest rates will cause firms and banks to overreach themselves.

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John Smith, whose father, also John, bought over W J MacDonald butchers in Stornoway's Francis Street in 1974, said the news had been "a long time coming".

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