所有的飞机都在接受检查,看是否可能有裂纹和腐蚀现象。
All planes are being inspected for possible cracking and corrosion.
奥巴马星期五在宾夕法尼亚州匹兹堡的卡内基-梅隆大学发表讲话,并观看微型机器人水下探索和检查下水管道是否有泄漏和裂纹。
He gave the address at Carnegie Mellon University in Pittsburgh, Pennsylvania, where on Friday he watched a display of mini-robots that explore water and sewer pipes looking for leaks and cracks.
确定是否有部件进行过改装,或被其他部件替代;检查所有部件是否有磨损、裂纹、变形和划痕;
Determine whether any parts have been modified or superseded by other parts. Examine all parts for abrasion, cracks, distortion and scratches.
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