采用临时管线给试验管道充水和排水，用泵给管道增压。
Temporary connections for filling and draining the pipeline are used, and a pump is used to "pressure up" the line.
本文分析了低粘液环输送高凝、高粘原油的理论基础，并在试验管道上成功地实现了高凝原油的低粘液环输送。
An analysis is made in the paper of the theoretical basis on which the crude oil of high pour point and high viscosity is transported by low viscous liquid jacket.
尽管如此，它仍然是非常有用的，特别是对于一些快速的任务，比如将音频文件录制为另一种格式或者仅使用管道进行试验。
Nonetheless, it's still incredibly useful — particularly for quick jobs, such as recoding an audio file to another format or simply experimenting with pipelines.
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