大家好,
最近在看一篇论文,FLEXIBLE FUCTIONAL FORMS AND REGULARITY:ASSESSING THE COMPETITIVE RELATIONSHIP BETWEEN TRUCK AND RAIL TRANSPORTATION
现有以下问题请求赐教:
1.FLEXIBLE FUCTIONAL FORMS AND REGULARITY,准确的是什么意思?
2.TL BTL CESTL,谁能给讲解一下吗?从哪些资料可以看到相应的文章?
非常感谢,期待回复啊!


雷达卡


京公网安备 11010802022788号







