卧式无折边球形封头容器
horizontal type flapless spherical head vessel
RX行星环锥无级变速器
RX planetary tapered stepless transmission
超边无向分解
Hyperedge undirected decomposition
低渗无边底水气藏
low-permeability gas reservoir without edge and bottom water
无边带kary n-cube网络
k-ary n-cube network without wraparound connections