Small or non-anti-aliased text is most difficult to read with modified letter spacing.

小而无抗锯齿的字体如果没有适当的字符间距，将更加难以阅读。

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Halliburton then conducted another test using a modified procedure, the letter said, and the result for the first time indicated the slurry design would be stable.

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Issa's letter stressed that the committee modified its request to just these two areas and reiterated that addressing those areas was the way to avoid the vote next week.

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