The development of mechanical timepieces urred the search for more accurate sundials with which to regulate them 机械计时器的发展促使人们寻求更精确的日晷，以便校准机械计时器。
2.
The deelopment of mechanical timepieces spurred the search for more accurate sundials with which to regulate them 机械计时器的发展促使人们寻求更精确的日晷，以便校准机械计时器。
3.
The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them 机械计时器的发展促使人们寻求更精确的日晷，以便校准机械计时器。
4.
The development of mechanical timepieces spurred the search for more accurate sundials with which to regulate them 机械计时器的发展促使人们寻求更精确的(日晷sundials ) ，以便校准机械计时器。
5.
The development of mechanical timepieces spurred the search formore accurate sundials with which to regulate them 机械计时器的确是的发展促使爱好艺术的确是的人们寻求更精确的确是的日晷，以便校准机械计时器。
