Plus, since hybrids have different components and systems than conventional cars, finding a certified mechanic who knew how to fix them was challenging.

此外，由于混合动力汽车与传统的汽车相比有不同的组件和系统，造成很难找到娴熟的技工。

youdao

You can get the experience you need to become a certified power plant or airframe mechanic in one of three ways.

你可以从下面三种方式得到你取得机身维修证照或引擎维修证照的经验，才能参加笔试。

youdao

Having it done by certified mechanic costs a couple hundred dollars, but can save you thousands.

FORBES: What That Dreaded 'Check Engine' Repair Will Cost You

Log books indicate a mechanic certified the plane had been tested and "throughout its normal range of speeds" and maneuvers.

CNN: NTSB: Pilot overwhelmed by g-forces in Reno crash