公司致力于为全球客户提供各种型号的发动机缓速器：包括压缩释放型缓速器、泄气型缓速器及排气蝶阀等，同时提供优质的技术与服务。

Jacobs commits to provide engine brake products to the world market including compression release brake, bleeder brake and exhaust brake, and meanwhile providing good technology and service.

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接着我到排气管厂工作，提起来实在令人泄气。

Next I tried working in a muffler factory, but that was exhausting.

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