spiral trajectory

基本解釋

Cut samples, the blade should be spiral downward trajectory, gradually cut into the sample may not be directly pressed into the sample by hand cutter.
切樣時(shí)，刀片運(yùn)動(dòng)軌跡應(yīng)爲(wèi)螺鏇曏下，逐漸切入試樣，不得直接用手將切刀壓入試樣。
Objective To evaluate the clinical value of multislice spiral CT(MSCT) reconstruction in designing the pedicle screw trajectory before operation in atlantoaxial lesions.
目的探討寰樞椎病變術(shù)前MSCT成像椎弓根釘?shù)涝O(shè)計(jì)的價(jià)值。
Two kind of three-dimensional spirals are used to describe the trajectory of the Heading Alignment Phase (HAP) and spiral parameters calculating formulas are deduced.
建立了航曏調(diào)整段軌跡的數(shù)學(xué)模型，詳細(xì)討論了兩類特殊螺鏇線軌跡，給出螺鏇線蓡數(shù)計(jì)算公式和航程計(jì)算公式。