<prompt> Translate the following text to EnglishKwa kawaida, stechiometry inayohitajika ya mfumo wa FGD ya mvua ni katika safu ya 1.01 hadi 1.1, na 1.01 hadi 1.05 ni ya kawaida kwa mifumo ya kisasa ya FGD ya mvua.  <response>: Typically the required stoichiometry of a wet FGD limestone system is in the range of 1.01 to 1.1, with 1.01 to 1.05 typical for modern wet FGD systems. 