The heart is a highly contractile organ.

心脏是具有高度收缩性的器官。

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Cardiac contractile proteins are the material basis of cardiac contractility.

心肌收缩蛋白是心肌产生收缩的物质基础。

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Cardiac contractile proteins are the material basis of cardiac contractility.

心肌收缩蛋白是心肌产生收缩的物质基础。

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