Calcium also allows blood to clot normally, muscles and nerves to function properly, and the heart to beat normally.

钙可以是你的血液正常可凝固，肌肉和神经正常的工作，还可以使你的心脏正常起搏。

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A blood clot from somewhere in his body had broken free and been carried through the circulation into the heart, then lodged in his lungs.

他身体某处的血栓块脱落，通过血液循环进入他的心脏，停留在他的肺部。

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However, when a major artery is blocked, signs and symptoms may be severe, such as those occurring with heart attack, stroke, aneurysm, or blood clot.

然而，当主要的动脉被堵塞时，体征和症状就会严重，例如它会伴有心脏病发作，中风，动脉瘤，或者血栓。

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The most impressive experimental drug Schering is developing is an anti-clot agent to prevent heart attacks.

FORBES: Magazine Article

They were also high in those taking aspirin which, counterintuitively, is often prescribed to reduce clot formation and thus prevent heart attacks.

ECONOMIST: Deep-vein thrombosis: Causing trouble | The

Premature deaths from heart disease - the single biggest killer - are down by a quarter since 1997, with a third more heart operations, twice as many patients receiving immediate access to clot-busting drugs and cholesterol lowering drugs now prescribed to 1.8 million people.

BBC: NEWS | UK | Politics | Full text: Blair on public services