If it fails, this means that it is the first time this session called this trigger function.
如果操作失败，则意味着这是会话首次调用这个触发器函数。
With related technology research and analysis, we use the pyroelectric infrared sensors as the core device of the infrared automatic trigger module, for the auto-trigger function.
本文在对相关技术进行一定的研究和分析后，在自动触发方面，采用热释电红外传感器作为完成红外自动触发功能的核心器件；
The experimental results show that the algorithm decreases the average interactive times between charging trigger function and online charging system without improving rejection probability.
对比结果表明，该算法相对其他算法能够在不提高拒绝概率的情况下，减少了业务控制网元与计费系统间的平均交互次数。
The experimental results show that the algorithm decreases the average interactive times between charging trigger function and online charging system without improving rejection probability.
对比结果表明，该算法相对其他算法能够在不提高拒绝概率的情况下，减少了业务控制网元与计费系统间的平均交互次数。
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