class of service
服务等级：服务等级是在数据和语音协议中使用的一个参数
常用释义
英式发音
美式发音
基本释义
- 服务等级：服务等级（COS或CoS）是在数据和语音协议中使用的一个参数，用于区分传输的数据包中包含的负载类型。这种区分的目的通常与为数据负载分配优先级或为电话呼叫分配访问级别相关。
例句
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1·Based on "competitive product design first class of service satisfied first" principle.本着“精品设计、优质服务、满意第一”的原则。
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2·Beyond a certain threshold, the sheer volume of messages could push an interface into a separate class of service.超过某个阈值以后，巨量的消息可以推动接口进入单独的服务分类。
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3·Performs PABX data-base programming and regular service change to control class of service on all telephone sets in the hotel.进行程控交换机数据库编程以及常规服务变更，以控制所有酒店内所有电话机的服务等级。
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4·Network policy support includes LAN-based Class of Service and Quality of Service, advanced security and automated network management.网络政策支持包括基于LAN的服务种类和服务质量、先进的安全性和自动的网络管理。
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5·If the portion of traffic that requires encryption is relatively small, carving out a separate class of service for it might be appropriate.如果需要加密的流量部分相对较小，则为其划出单独的服务分类也许是适当的。
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6·When traveling on behalf of the property, all sales personnel will travel by the most economical class of service provided by an air or surface transport provider.当为酒店生意出差时，所有的销售人员将以最经济的航班或交通工具安排。
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7·6where a voluntary change of itinerary is made, a passenger shall be entitled to the free baggage allowance applicable to the class of service shown on the updating ticket.旅客自愿改变航程后的免费行李额，按改变航程后客票票价级别所适用的免费行李额的规定办理。
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8·Where an involuntary change of itinerary is made, a passenger shall be entitled to the free baggage allowance applicable to the class of service shown on the original ticket.旅客非自愿改变航程后的免费行李额，按原客票票价级别所适用免费行李额的规定办理。
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9·Eventually, she was taken out of service in 1935, ending the era of the luxurious Olympic class ocean liners.最终，她在1935年退休，结束了豪华奥林匹克级远洋客轮的时代。
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10·Served by a large class of Confucian literati selected through civil service examinations, the government system of Tang Dynasty was gradually perfected under the support of Confucian bureaucratic.唐朝通过科举制度在全国选出大批儒生为政府效力，而唐朝的政府体系在儒学官僚的支持下也日臻完善。