Third, they should support good quality of service, which can make the transition of real-time multimedia traffic from application level to carrier grade smoothly.
第三，路由交换设备必须能够提供良好的服务质量保障，使得网络实时多媒体业务从应用级平稳过渡到运营级。
2
The catalyst comprises the following components: vanadium element, transition metal M and carrier.
该催化剂包括以下组分：钒元素、过渡金属元素M和载体。
3
The active component(e. g. salts and oxides of transition metals)of many catalysts will disperse spontaneously onto the surface of the carrier.