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    #1

    is there any mistake?

    Laboratory benches are made of granite. In this way, they are not shaken easily and degradation mechanisms is prevented. In addition,the changing colours isnít seen in case of acid is spilled in the asid-base experiments.

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    #2

    Re: is there any mistake?

    Quote Originally Posted by happys82 View Post
    Laboratory benches are made of granite. In this way As a result, they are not shaken (? broken ?) easily and degradation mechanisms is prevented. In addition, the changing colours colour alterationisnít can't be seen in case of if acid is spilled in duringthe acid-based experiments.
    See above. You don't generally "shake" workbenches so I wonder if you mean that they're not easily broken. If "degradation mechanisms" is a technical phrase, then it needs to be followed by "are" (mechanisms = plural). However, I have removed "mechanisms" as I assumed that you simply meant that granite does not degrade easily.

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