介绍了穿插法中管材的选择，讨论了穿插法施工对燃气管道输送能力的影响。
The selection of pipe material for insertion method is introduced, and the influence of insertion method construction on transmission capacity of gas pipeline is discussed.
引入减阻剂后，可降低湍流磨擦阻力，提高流速。增大输送距离和提高管道输送能力。
The adding of the drag reduction agent can reduce the friction force of the current and increase the flow speed as well as increase the conveying distance.
结果表明，在输油管道停输再启动的基础上，定期对管道进行清蜡，可有效提高管道输送能力。
The author considers that regular wax removing can effectively increase the transportation capability of the pipeline on the basis of restart-up.
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