Then in a dazzling display of choreography, all the components of a molecular machine lock together around the RNA to from a miniature factory called a ribosome.

然后像眼花缭乱的编舞一样，所有构成分子机器的部件在RNA的周围连接在一起形成称为核糖体的微型工厂。

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The researchers found the gel triggered the growth of new cells and also helped with adhesion - the process by which new dental cells 'lock' together.

研究人员发现，这种凝胶不仅能触发新细胞生长，也有助于形成一种附着机制让新生的牙细胞相互‘锁定’。

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These junctions, these red dots here are actually made up of proteins, some are synthesized by one cell, some are synthesized by each other, and they lock together to form a very tight barrier, to form a tight junction between the two cells.

这些红点表示细胞连接,实际上是由蛋白质构成的,有些是由一个细胞单独生成的,有些是由两个细胞共同生成,使这两个细胞紧锁在一起形成紧密的屏障,并在两细胞间形成紧密连接

耶鲁公开课 - 生物医学工程探索课程节选

If subjected to pressure, though, the molecules lock together and behave like a solid.

ECONOMIST: Monitor: Fluid defences | The

Nations have come together to lock down nuclear materials, and America and Russia are reducing our arsenals.

WHITEHOUSE: Remarks by the President to the UN General Assembly

It's manifested in the progress we've made on nuclear security and nonproliferation through the New START Treaty and our efforts to lock down nuclear materials together, and it's manifested, frankly, in the fact that, even as we speak now, the Russians are hosting the P5-plus-1 talks in Moscow aimed at getting Iran to live up to their international obligations.

WHITEHOUSE: Press Briefing by Jay Carney and Ben Rhodes