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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Multileaf foil bearing, instead of ball bearing of turbo-pump in rocket engine, has many important advantages including long life, high speed and low energy loss.

用多叶箔片轴承取代火箭发动机涡轮泵上的滚珠轴承具有工作寿命长、工作转速高、能量损失小等重要优点。

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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