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  1. #1
    hanky is offline Key Member
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    please judge my sentence

    Here M(X) and M'(Y) are the number of particles containing
    in the systems X and Y, respectively.

    If this isn't a good sentence, could you please kindly suggest another?
    Thanks.

  2. #2
    2006 is offline Banned
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    Re: please judge my sentence

    Quote Originally Posted by hanky View Post
    Here M(X) and M'(Y) are the number of particles contained in the systems X and Y respectively. (no comma after Y)


    Thanks.
    2006

  3. #3
    hanky is offline Key Member
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    Re: please judge my sentence

    Quote Originally Posted by 2006 View Post
    2006
    Could you please explain why "the" is not used before "systems"?

    Thanks.

  4. #4
    2006 is offline Banned
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    Re: please judge my sentence

    Quote Originally Posted by hanky View Post
    Could you please explain why "the" is not used before "systems"?

    Thanks.
    It's just not needed, so it's just in the way.

    As another example, suppose you have 5 cars, numbered 1 through 5, in a race. You could say 'I think car 3 has no chance of winning.' You wouldn't say 'I think the car 3 has no chance of winning.'

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