The heart is the body's engine room, responsible for pumping life-sustaining blood via a 60,000-mile-long (97,000-kilometer-long) network of vessels.

心脏是身体的能量室，负责通过60000英里（97000千米）长的血管网络泵入维持生命所需要的血液。

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The heart is the body's engine room, responsible for pumping life-sustaining blood via a 60, 000-mile-long (97, 000-kilometer-long) network of vessels.

心脏是身体的能量室，负责通过60000英里(97000千米)长的血管网络泵入维持生命所需要的血液。

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The rig testing results have showed that the magnetic seal has advantages of excellent performance and long life which can meet the needs for typical engine development.

在试验器上进行了性能、耐久性及寿命试验。试验结果表明，磁力端面密封具有密封性能优异、寿命长等优点，基本能够满足某型发动机研制的需要。

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Media and information literacy, through which individuals acquire a combination of technical and cognitive skills to seek, evaluate and use information effectively, develop critical thinking and acquire the behaviours for life-long learning, is becoming the engine of education in the 21st century.

UNESCO: MEDIA SERVICES