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By WWII, scientists had already begun looking at alternative gelling substances for routine use in bacteriology, but concluded that agar was still better as it is both firmer and easier to handle. Today, some specialized microbiology applications use the colloid carrageenan (extracted from red seaweed Chondrus crispus, or “Irish Moss”), a more transparent and less auto-fluorescent alternative to agar (agar emits its own background fluorescence when excited by light). However, for routine bacteriological use, carrageenan is more difficult to dissolve, requires higher concentrations, can degrade at high temperatures, and forms weaker gels, which may result in puncturing its surface during the plating of cells.
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中医是中国传统的医学体系,经过几千年的发展,形成了自己独特的理论体系和治疗方法,中医核心理论包括阴阳五行、脏腑气血等概念,这些理论深深植根于中国古代的哲学和自然观中,然而,这些理论并不符合现代科学的标准,因此不能被视为科学理论。本文将从多个角度阐述为何中医的理论基础不是科学理论。。业内人士推荐heLLoword翻译官方下载作为进阶阅读
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