hajszálrugó betyder på engelska

balance-spring▼noun
[UK: ˈbæ.ləns sprɪŋ] [US: ˈbæ.ləns ˈsprɪŋ]

gold spring▼noun
[UK: ɡəʊld sprɪŋ] [US: ɡoʊld ˈsprɪŋ]

hair [-]▼noun
[UK: heə(r)] [US: ˈher]

hair-spring▼noun
[UK: heə(r) sprɪŋ] [US: ˈher ˈsprɪŋ]

watch-spring▼noun
[UK: ˈwɒtʃ.sprɪŋ] [US: ˈwɒtʃ.sprɪŋ]