现存系统

exhausting system───抽风系统

billing system───计费系统

heating system───供暖系统，供热系统

sensing system───感测系统；测读系统

voting system───[自]表决系统

operating system───[计]操作系统

ticketing system───售票系统

Considerable modification of the existing system is needed.───需要对现有的系统进行相当大的改进。

Gully, a senior adviser on communicable diseases at the WHO, for example, defends the existing system in which countries share data within the WHO but not with outsiders.───例如，WHO的流行病问题高级顾问保罗•格利解释道，就现有的疾病预警系统而言，各国仅在WHO内部共享数据，对外则概不公开。

One of the most sensitive questions in both countries is whether China will develop overseas bases to support and expand its reach, and whether the US should extend its existing system.───两国面临的最敏感的问题之一是，中国是否会发展海外军事基地，以支持和扩展其势力范围，以及美国是否应该延用现有体系。

This diagram can be used for an implementation independent design document or for exploring any further improvement to the existing system.───本图可用于独立设计执行文件，或已有系统远期改善。

One day Crass, who was one of these upholders of the existing system, scored off Owen finely.───有一天，现行制度的拥护者之一克拉斯把欧文大大奚落了一番。

Analyzes user and company requirements, procedures, and problems to automate processing or to improve existing system.───分析用户和公司需求、流程和问题，以促进流程自动运行或改进现有系统。

b. If the requested assignment is for use in a new circuit, net or system, or for a significant expansion of an existing system.───如果所申请的指配用于新的电路、网络或系统，或用于已有系统的大规模扩展。

With the increase in traffic handling capacity of the existing system has been unable to meet demand.───随着业务量的增加原有系统的吞吐量也已不能满足需求。

This paper analyses the defect of these existing system under full service operation, and provides the integrated service model of video.───本文以电信全业务运营为前提，剖析目前各分散的视频系统架构存在的不足，提出了视频业务综合服务模型。

Considerable modification of the existing system is needed.

The existing system for doing so is there to be used, alternative systems are not.

Both reports condemned the existing system and recommended the end of a separate Poor Law.

Devi nevertheless exploits the existing system to help the underprivileged who come to her for help.

Adding depreciation accounting to the existing system has, in the past, not been affordable.

One of the major flaws in the existing system is that the prosecutor has immunity from law suits claiming malicious prosecution.

Those who govern the existing system, no matter how left-wing and revolutionary their political ideologies, are social conservatives.

The existing system, the president declared, traps people in a cycle of dependency.

They are mere apologists for the existing system.