Guar gum, a plant colloid, costs less than agar and is better suited for growing thermophilic bacteria, but is also more difficult to handle, being more viscous and less transparent. The bacterial polysaccharide xanthan is cheaper as well but forms weaker jellies that, as with carrageenan, might result in puncturing its surface. Other colloids, like alginate (from brown seaweed) and gellan gum (from a bacterium), don’t set solely based on temperature and require additives for gelation. These additives might interfere with microbial growth and make the preparation of those jellies less handy than agar plates.
第一节 扰乱公共秩序的行为和处罚
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2026-02-27 00:00:00:0本报记者 白光迪 吴德沛委员——
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But doing a perfect job of rendering complex SVG doesn’t do us much good if it slows GTK applications down too much. Recently, we’ve started to look at the performance implications of SVG rendering.
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