罗马帝国分裂成了两部分，这对西罗马帝国的损害尤其巨大，因为它依赖东罗马帝国的经济支持。
The division of the Roman Empire into two parts was particularly damaging for the Western Empire because it relied on the Eastern Empire for economic support.
膜片弹簧中间的部分撕裂成若干个指针大小般的片，充当回力（释力）杠杆。
The center portion of the diaphragm spring is slit into numerous fingers that act as release levers .
应用推荐