Other makers of four-cylinder cars have either ignored the problem or adopted cheaper solutions—like heavier flywheels and more padded engine mounts to help dampen the secondary vibrations.

其他的四缸引擎汽车制造商要么忽略了这一次生振动问题，要么采取了更经济的解决方法——比如安装更重的飞轮和更厚的引擎来抑制次生振动。

youdao

In recent years, the increasing importance of tourism has led many scholars and policy-makers to explore tourism as an engine of growth.

近年来，旅游业的重要性日益增加，许多学者和政策制定者都将旅游业作为经济增长的引擎。

youdao

Some of the start-up engine companies say they could ultimately get orders from makers of power generators or boat engines.

WSJ: How to Make Better Car Engines

Makers are the new power of the economic engine.

FORBES: Chris Anderson's New 'Maker' Vision

Meanwhile, auto makers are proving there's still plenty of potential in the gas-powered engine to meet customer's fuel-efficiency demands.

WSJ: Henry Payne: The Motor City Roars Out of Washington's Shadow