For the use of fire alarm system, fire detector alarm unit testing and installation of construction engineering units during the installation and acceptance of the tools is necessary.
为各使用火灾报警系统的单位测试火灾探测器报警功能及安装施工工程单位安装验收过程中必备之工具。
PID regulator is the most primary control strategy in heat power engineering system and it directly influences the safe and economical operation of units.
火力发电厂中的热工系统是一个复杂的系统，PID调节器是热工系统最主要的控制策略，直接影响机组的安全、经济运行。
The characteristic of blowing-carding units was analysed, the step, principle and content of design on blowing-carding system engineering were pointed out.
分析了清梳联系统的特征，提出了清梳联系统工程的设计步骤、原则和内容。
It is pointed that the oil-gas recovery technology is a systematic engineering. The design and election of oil-gas gathering units and recovery system are of the same importance.
油气回收技术是一个系统工程，在设计和选型时，应该注意油气收集系统和油气回收装置的同等重要性。
It is pointed that the oil-gas recovery technology is a systematic engineering. The design and election of oil-gas gathering units and recovery system are of the same importance.
油气回收技术是一个系统工程，在设计和选型时，应该注意油气收集系统和油气回收装置的同等重要性。
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