Thrombin is an important factor of clotting system, it plays a key role in the blood clotting cascade.

凝血酶是机体凝血系统中的一种重要组成因子，在机体受到创伤时的止血机制中发挥了重要作用。

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A molecular messaging system has to maintain a balance between blood not clotting too much or too little.

血液中的信息系统，需要维持血凝程度的平衡。

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Clearly, this system works very well to control microvascular clotting.

很明显，该系统对控制微血管凝集很有效。

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Some form what are called megakaryocytes which become platelets, which are responsible for clotting, for forming a barrier if your circulatory system gets injured so you don't bleed.

还有一些类型的细胞称为巨核细胞,生成有凝血作用的血小板,在你的循环系统受损时形成止血屏障

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