语法分析：定语从句解析 - "a transformation that best aligns the reference and query points can then be computed."

"a transformation that best aligns the reference and query points can then be computed." 这句话的语法分析如下： \n\n主句：a transformation can be computed. \n从句：that best aligns the reference and query points. \n\n从句中的定语从句：that best aligns the reference and query points. \n\n关键词分析： \n- that: 关系代词，引导定语从句 \n- best: 最好的，修饰动词aligns \n- aligns: 动词，与reference and query points保持一致 \n- the reference and query points: 名词短语，被动词aligns修饰 \n- the: 定冠词，修饰名词points \n- reference and query: 形容词短语，修饰名词points \n\n整个定语从句的意思是：最好地使参考点和查询点对齐的转换可以被计算。