The use we made the time was important.请分析句子结构we made the time 算定语从句么

1.原句有误,正确句子应该是：
The use (which/that) we made of the time was important.
我们对时间的利用很重要.
2.判断：we made of the time为定语从句.
3.关系代词which/that代替先行词the use,放入从句made之后,刚好构成整句：we made use of the time.“我们利用时间”.
而且,该关系代词因为做made的宾语,所以可以省略.
其中含有一个固定短语make use of...,意思是“利用...”.