It is indicated that pipeline dredge method is superior to vertebral plate partial resection screw place method and Abumi screw place method in posterior pedicle screw fixation.
提示管道疏通法在经颈后路椎弓根螺钉内固定常规置钉法中优势明显。
The vertical positioning of the dredge can be done by water conversion calculation positioning or use the method of RTK-GPS positioning.
疏浚船垂直定位可通过水面换算定位或采用RTK—GPS定位两种方式。
At last, the qualitative method of defect analysis is showed, which can dredge up underlying information.
最后,提出了一些定性的缺陷分析方法,可充分挖掘缺陷的潜在信息。
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