Those drills may punch holes in airplane engine parts, and thus help produce transportation for people and goods.

钻头可以在飞机引擎部位打孔，帮助人们出行和货物运输；

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Exports of goods and services, the main engine of growth in recent years, will weaken sharply as a consequence of the global downturn.

近几年来韩国经济增长的主要引擎是商品和劳务的出口，随着全球性经济的滑坡，韩国的商品和劳务的出口已经大幅度减少。

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Now the city has five backbone industries: spin costume, engine electric, electrommunication, metal goods, chemistry goods.

中山市当前主要有五大支柱产业：纺织服装、机械电气、电子通讯、金属制品、化学制造。

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Now the city has five backbone industries: spin costume, engine electric, electrommunication, metal goods, chemistry goods.

中山市当前主要有五大支柱产业：纺织服装、机械电气、电子通讯、金属制品、化学制造。

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