求翻译：当钻孔深度达到设计要求时，应立即用超声波桩孔检测仪（K-400型侧壁仪）对孔深、孔径、孔形和孔底沉渣量进行检查，确认满足设计要求后，报请监理工程师批准，监理工程师认可后，立即进行清孔。清孔利用钻机的反循环系统，采用气举抽浆法进行换浆清孔，在清孔的同时，将附着于护筒壁的泥浆清洗干净。清孔应达到以下标准：是什么意思？

When the drilling depth to meet the design requirements, should be immediately Pile ultrasonic detector (K-400-type wall instrument) on the hole depth, diameter, pore shape and pore volume of bottom sediment check to make sure to meet the design requirements, report to the Commissioner Engineer for

When hole depth should be immediately meet the design requirements, ultrasound detector (piling holes K-400 sidewall to hole depth, aperture, Gong-shaped and the bottom of the hole dregs of confirmation checks meet design requirements, after approval by the Engineer, supervising engineers recognized

When the drill hole depth achieved when design request, should use the ultrasonic wave pile hole instrumentation immediately (K-400 sidewall meter) to the depth of hole, the aperture, Kong Xing and the hole bottom slime quantity carries on the inspection, after confirmed satisfies the design request

When you drill depth meet the design requirements, should immediately pile holes by ultrasonic detector (K-400-type side wall apparatus) on the hole depth, diameter, hole and the hole bottom sediment volume of checks, after confirming that meets the design requirements, report it to the supervising

When the drilling depth to meet the design requirements, should be immediately Pile ultrasonic detector (K-400-type wall instrument) on the hole depth, diameter, pore shape and pore volume of bottom sediment check to make sure to meet the design requirements, report to the Commissioner Engineer for