rationalistn.纯理论者；理性主义者rationaladj.合理的；理性的；能推理的n.有理数Rational Solutions理性Rational ignorance理性的无知rational thickness合理厚度rational hankering理性追求rational transport合理运输rational-emotive开导式情感rational criticism理性批判rational mechanics理性力学rational functions有理函数rational knowledge理性认识

1. Relational data is regular and homogeneous.
   关系数据是规则且同构的。
2. Poor construction of the relational data model can lead to scalability issues.
   不佳的关系数据模型结构可能导致可伸缩性问题。