建设单位:西安精卓航宇科技有限公司(企业法人:耿金红,项目负责人:司拥军);施工单位:陕西中泰以安建设工程有限公司(企业法人:王明超,项目经理:李明);监理单位:陕西众志项目管理有限公司(企业法人:张鹏飞,总监理工程师:张鹏)
This article originally appeared on Engadget at https://www.engadget.com/home/ambient-dreamie-bedside-companion-review-the-best-sleep-ive-had-in-years-184019430.html?src=rss
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Before agar, microbiologists had experimented with other foodstuffs as microbial media. They turned to substances rich in the starches, proteins, sugars, fats, and minerals that organisms need for growth, testing with broths, bread, potatoes, polenta, egg whites, coagulated blood serums, and gelatine. However, none worked particularly well: all were easily broken down by heat and microbial enzymes, and their surface, once colonized, became mushy and unsuitable for isolating microbes.