noun🔗Share나사 잭A jack (mechanical lifting device) which is operated by turning a leadscrew."The mechanic used a jackscrew to slowly lift the heavy truck so he could change the tire. "정비공은 타이어를 교체하기 위해 무거운 트럭을 천천히 들어 올리는 데 나사 잭을 사용했습니다.technologymachinedevicetechnicalChat with AIVocabulary GamePractice Reading
