At the present, defects inside a BOP are mainly inspected by conventional methods, such as UT, MT, PT, etc. and it bears a pressure test.
目前，对防喷器等井控装置检测内部缺陷主要采用超声波、磁探、渗透等常规检测以及进行耐压试验，难以发现和判定已有裂纹的扩展。
At the present, defects inside a BOP are mainly inspected by conventional methods, such as UT, MT, PT, etc. and it bears a pressure test.
目前，对防喷器等井控装置检测内部缺陷主要采用超声波、磁探、渗透等常规检测以及进行耐压试验，难以发现和判定已有裂纹的扩展。
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