【Key words】 Black liquor； Lignin； acid precipitation； Bioaugment； Efficient Strain； Degradation.；
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More efficient deliveries can take the strain off lorries and other shipping infrastructure.
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Ultimately, shifting between your e-mail and your work projects only a few times a day, instead of dozens, makes you more efficient and focused and minimizes brain strain.
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Second, tough times are forcing firms to strain every brain cell to become more efficient.
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