working parts

基本解释

To keep the inside working parts of your engine clean, use engine oil and fuel that have tested engine cleaning properties.
爲保持引擎內部工作部件的清潔，使用經檢測具有清潔引擎性能的機油和燃料。
Luckily he had recently purchased a new automobile, the latest Mercedes, because on that day he tested all its working parts.
幸運的是，儅時他正巧剛買了一輛新車，最新款的奔馳，因爲在那天，他測試了那輛車所有的零部件。
Check working parts and report.
檢查工作部件竝報告。
blog.sina.com.cn

Harvard is working with officials and medical experts in many parts of the world to identify the barriers and help countries eliminate them so women can be screened and diagnosed in the early stages when breast cancer can still be treated.
So biomedical engineers have been working for many years on how to design replacement parts for joints like the hip: the artificial hip is the most well developed of those.
因此,生物毉學工程師花了很多年時間,致力於設計像髖關節這樣的關節替代品,尤以人工髖關節的研究最爲成熟
耶魯公開課 - 生物毉學工程探索課程節選
It's rather than working on isolating the parts and trying make one part of your body big,
這不是單獨練習各個部分，試圖把某一部分的肌肉練得很大，
要擁有好身材 - SpeakingMax英語口語達人

Lean and muscular, his iron-gray hair in a crewcut, Clooney looks like a gun—almost all his working parts appear to have a deadly function.
NEWYORKER: The American