Question

请问这句的句子成分是？越详细越好，谢谢。

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。

Answer 1

你好

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。

主语：The development of mechanical timepieces (of mechanical timepieces定语，修饰development)

谓语：spurred

宾语：the search

定语：for more accurate sundials 修饰 the search

状语：with which to regulate them, 修饰 sundials, which指代sundials, them指代 mechanical timepieces

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Answer 2

The development of mechanical timepieces是主语（ of mechanical timepieces为后置定语）
spurred 是谓语
the search for more accurate sundials是宾语（for more accurate sundials为定语）
with which to regulate them应是一个定语从句与目的状语的混合语句，补充完整应为
to regulate them with accurate sundials(先行词which代替这个词）