在井内加压下进行水泥胶结测井带压作业，其目的是将微环空与串槽区分开。
The purpose of cement bond log (CBL) under increasing borehole pressure is to differentiate micro annulus from bypass channel.
结果巩膜环扎外加压术引起角膜前表面周边部术后1周屈光度显著减小（P<0.01）；
Results After surgery, refractive power on corneal anterior surface decreased significantly in peripheral zone at 1 week(P< 0.01).
蜗壳内充水保压系统，主要包括加压水泵及其控制装置、蜗壳进口闷头、座环密封环等组成。
The water filling and pressure maintaining system mainly included: pressure pump and its control device, blockage end at the spiral case inlet, sealing ring on the stay ring of turbine, etc.
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