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Is use of "have more distance" in the following sentences correct grammatically and conceptually? Is the following sentences correct grammatically?If it is not , kindly suggest ways to make it clearer.

also, center of leakage vortex for variable thickness blade have more distance from the suction surface than constant thickness blade(approximately two times more).

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  • "[...] blade is farther/further from [...]" (unless there are several blades). – MorganFR Nov 3 '16 at 13:44
  • The blade not, vortex is farther..The blade is fix – user19061 Nov 3 '16 at 13:48
  • Yes, my bad. You are missing a whole bunch of "the" though. – MorganFR Nov 3 '16 at 13:49
  • "also, center of leakage vortex for variable thickness blade is farther from the suction surface than constant thickness blade(approximately two times more). " Is it OK? – user19061 Nov 3 '16 at 13:51
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    "also, the center of the leakage vortex for the variable thickness blade is farther from the suction surface than the constant thickness blade (approximately twice the distance (or two times farther)). You can also go with "is at a greater distance". – MorganFR Nov 3 '16 at 13:56
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Yes, though consider "a greater distance" in place of "more distance". You have, however, another problem: "Center" is singular (and has no definite article; "the"), but the verb "have" is not third person singular.

There are also some words that could be pluralised, depending on context. Thus I'd suggest:

also, the center of the leakage vortex for variable thickness blades has greater distance from the suction surface than constant thickness blades (approximately two times more).

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