本文分析了室内排水埋设工程，管道堵塞、漏水、倒坡等问题，并提出从设计到施工应采取的预防措施。

This paper analyses the problem of leak and backward slope in indoor pipeline and brings forward the prevention from design phase to construction phase.

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分析了全真空环氧树脂浇注设备发生堵塞故障的原因，介绍了预防措施及故障的处理方法。

The reasons for blockage of full-vacuum cast equipment are analysed. The protective measures and fault treatment are all introduced.

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简述了催化重整装置注氯线堵塞的成因，并提供了注氯线堵塞的应对办法和预防措施。

Causes for blocking-up of chlorine-feeding pipelline in fluid catalytic cracking unit (FCCU) is analyzed and measures and precautions to be taken proposed.

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