Giving stem cells to unborn babies diagnosed with spina bifida while they have in utero surgery could be “a major milestone” in the treatment of birth defects, doctors say.
“通过沉降、气浮、过滤以及加入化学药剂等方式，处理厂能够将采出水中的泥沙、油滴、悬浮物等从污水分离出来，使污水变为可循环利用的合格水。”陈文昱说，处理后的采出水将再次通过注水增压泵站，注入到油田的目标油层中，实现水资源有效循环，避免了污水外排造成的生态环境污染。
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Фото: Борис Ельшин / РИА Новости
"They're losing lots of habitat - lots of woodland," says Spencer. "And we're also knocking down old buildings, making our homes warmer, more airtight - there are less places for them to go."