为了解决回拖卡管问题，动态注水平衡技术应运而生。
In order to solve this problem, the dynamic water injection balance technique is developed.
在水平定向钻穿越管道回拖环节中，容易出现卡管现象，导致穿越失败，造成巨大的经济损失。
Pipe sticking phenomenon appears sometimes during pull-back stage of pipeline crossing with horizontally directional drilling, which results in crossing failure and great economic loss.
由于试验数据和训练数据有限，传统的故障树分析难以对“卡管”事故原因及出现概率做出准确评价。
Because of the limitation of test and training data, the traditional fault tree analysis (FTA) method cannot provide accurate diagnosis.
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