Technique of mutation breeding in gladiola was studied by meansof electron beam.

用电子束辐射唐种球，研究唐的诱变育种。

Conclusion: The resuscitative effect of naphtha is resulted from the comprehensive action of multiple components.

结论挥发油开窍醒的作用可能是分综合作用的结果。

Abstract： Technique of mutation breeding in gladiola was studied by means of electron beam.

摘 要： 用电子束辐射唐种球，研究唐的诱变育种。

A simplified model based on drag concepts is developed to evaluate the roughness coefficient for unsubmerged vegetation.

并基于阻力的概念，建立了一简化的模型来估计的曼宁糙率系数。