1.The recommendatory principle and method by the authors are also adapted to high speed train.
作者提出的列车质量计算的原则和方法也适用于高速列车。
2.5 junior players recommendatory by other co-sponsors.
其它赞助商推荐的青少年选手5人；
3.Clause 4. 3 in this Standard belongs to obligatory rule, and others to recommendatory .
本标准4.3条为强制性的，其余为推荐性的。
4.10 junior players recommendatory by Mr. Zhang Lianwei.
张连伟先生推荐的青少年选手10人；