There are no systematic regulations about speed restriction on highways in our country. The governedspeed is usually the highways' designed speed, which has enormous disadvantages.
目前国内对于高速公路限速尚无系统的规定，高速公路上基本以设计速度作为限制速度，这存在着极大的弊端。
2
Systematically introduce a mining machine draw by electricity and its speedgoverned by system and way of brake by computers in a mining machine whose speed is governed by electromagnetism.
The second variable of supply chain management performance is velocity-or the speed of the supply chain . It is governed by the speed of access to good data, planning cycles and execution cycles.