Based on the characteristic of spectrum absorption of acetylene, an optical fiber detection system for methane gas is presented, which has reference channel and is for on line and real time detection.

基于乙炔气体的光谱吸收特性，采用一种带有参考通道的光纤乙炔气体在线实时检测系统。

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Based upon the operation actuality of acetylene hydrogenation reactor, the paper set up a control strategy, which is composed of general PID control and predictive control based on mechanism model.

针对当前乙炔加氢反应器操作现状，提出了常规复杂控制与基于机理模型的预测控制技术相结合的复合控制策略，旨在改善当前成效低的简单开环调节。

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The acetylene overproof phenomena in a large transformer are analyzed with dissolved gas analysis, and based on its structures, the fault positions are determined.

用溶解气体分析法对一台大型变压器内部乙炔超标现象进行了分析，并结合该变压器的结构，判断出故障所在位置。

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