The proponents of recombinant dna research have decided to encourage federal regulation of their work ; they hope that by making this compromise they can forestall proposed state and local controls that might be even stiffer 重组dna研究的支持者已决定支持联邦对他们工作的管理;他们希望通过这样的让步可以预先阻止州和本地可能更强硬的控制。