论述了城镇埋地燃气管道外防腐层的综合检测方法与分级评价方法。
The comprehensive detection method and the classification evaluation method for external anticorrosion coating of municipal buried gas pipeline are discussed.
建议进行分级使用从美国预防服务工作队的适应方法和建议，评估，开发和评价工作组定级。
Recommendations were graded using methods adapted from the us Preventive Services Task Force and the Grading of Recommendations, Assessment, Development, and Evaluation Working Group.
对水驱开发油藏论述了天然驱动能量的分级方法与天然水驱开采效果的评价方法。
For flooding development reservoir, addressed the classing method for natural driving energy and the evaluating method for natural water drive development effect.
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