From Longman Dictionary of Contemporary Englishworking partsworking partsMOVE something OR somebodythe parts of a machine that move → working
Examples from the Corpus
working parts• They do not, at least by biological standards, have intricate working parts.• It still retains all its working parts and would require only minimum repairs to put it into full working order.• He had, Edouard saw, a technical mind, and loved to see how working parts fitted together.• The working parts of a digital watch.• The neo-biological approach is to assemble software from working parts, while continuously testing and correcting the software as it grows. 