解决大瓦斯线结焦是延长焦化装置生产周期，确保高负荷加工劣质原料的关键手段之一。
Solving this problem is helpful to prolong the working cycle of the delayed coking equipment and insure treatment of low quality material in high load.
把更换下来的旧油管加工成复合油管应用到杆管偏磨的油井中，既延长了检泵周期，又节约了生产新油管的钢材。
Re-machining the failed tubing into complex tubing and re-usage of it, can prolong pump-checking cycle and save steel.
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