Fourth part: This article elaborated in the existing legal flame system, safeguard criminal activity witness appears in court to testify the system several ponders.

第四部分：本文论述了在现有法律框架体系内，保障刑事证人出庭作证制度的几点思考。

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Flame Detector, which scans the flame states on-line, is the core part of Furnace Safeguard Supervisory System (FSSS).

火焰检测器是锅炉炉膛安全监控系统的重要组成部分，其功能是实时监测火焰的燃烧状态。

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