A digital detecting system of four tubes leak of boiler in power plant based on virtual instruments was introduced.

介绍了一种基于虚拟仪器的火电厂锅炉四管泄漏数字化声学检测系统。

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Cause boiler "four tubes" the causes for the leakage of more, including wear and corrosion, overheating, ripping led is the main cause of four tube leakage.

总结坝电防“四管”泄漏管理经验及防磨防爆小组的工作经验，对锅炉“四管”爆漏原因进行分析并提出预防措施。

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Meanwhile, through acquisition, analysis and processing to the sort of acoustic emission signals, the testing system for the leakage of "four tubes" of boiler will be set up.

通过采集这种声发射信号并分析处理，建立了检测锅炉“四管”泄漏的检测系统。

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Below that is a row of four test tubes, marked with a circle, an X, a square and a plus sign.

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Robert Coulson, 71, hid 29kg (64lb) of the drug in four inner tubes in the spare wheel compartment of his car.

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Angklung is an Indonesian musical instrument consisting of two to four bamboo tubes suspended in a bamboo frame, bound with rattan cords.

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