root mass

The mass of root system of the mixed and the pure is respectively 9. 76% and 11. 08% of the total biomass of the two stands.

混交林和纯林的根系总质量分别占林分生物量的9.76%和11.08%。

Compared to passive suspension, HSIC can achieve good ride comfort with reduction 20% of root mean square ( RMS) acceleration of sprung mass, restrain pitch and roll motion and improve stability. Control performance of HSIC is better than independent skyhook control of four suspensions.

与被动悬架相比较，仿人智能控制可提高平顺性能近20%，能有效抑制车身的俯仰和侧倾运动，改善轮胎的接地性能，其控制效果优于对各悬架进行独立控制的天棚控制策略。

Based on the measured data from the winter wheat fields in Zhengzhou of Henan Province, the vertical distribution of root length density ( RLD) and root mass density ( RMD) were analyzed.

根据在郑州进行的冬小麦根系田间实测资料，研究了根长密度和根质量密度在砂壤土中的垂直分布。

Conclusion: The acquisition of hairy root of Phytolacca acinosa lays a foundation for the mass production of active components and introduction of foreign gene.

结论：成功建立了商陆毛状根离体培养系统，为进一步进行药用成分的工业化生产和引入外源基因改良性状奠定了基础。

This paper analyses the root of mass unexpected incident used subjective game theory.

本文运用主观博弈模型分析了我国群体性突发事件的产生根源.