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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.。业内人士推荐Line官方版本下载作为进阶阅读
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Медведев вышел в финал турнира в Дубае17:59
Our effect pipeline handles the Success and Failure cases automatically. If a function returns Success, the subsequent function in line will be called. In the case of a Failure, the pipeline terminates.。业内人士推荐Line官方版本下载作为进阶阅读
"""数据实体类 - 封装抓取结果"""