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    #1

    use of X's Y in the technical paper

    HI,

    I am writing a technical paper about a kind of the turbine (Wells turbine). Is use of "CTB’s suction surface" in the following sentence correct grammatically and conceptually?If it is not , kindly suggest ways to make it clearer.



    *It can be seen that there is a greater vortex on the tip zone of the CTB’s suction surface than on that of the VTB’s suction surface.



    Is the combination of "the tip zone of the suction surface of the CTB" correct grammatically? Which is better in a technical paper? CTB's suction surface or suction surface of CTB?

    ...............................
    suction surface is a part of the blade of the turbine.
    VTB=variable thickness blade CTB=Constant thickness blade

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    #2

    Re: use of X's Y in the technical paper

    Yes, your rewrite ("of the suction surface of the CTB") is correct and would be the more formal way of writing. However when you have too many "of the x of the y of the z" in a row sometimes it is clearer to use a possessive "s."

    I would write:

    It can be seen that there is a greater vortex on the tip zone of the suction surface of the CTB than of the VTB.

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