三线法是二线法的改进型，即采用两个辅助地极，通过公式计算，在中间一根辅助地极在总长的0.62倍时，可基本消除由于地桩电阻引起的误差；现在这种方法仍然在用。但是此法仍不能消除由于被测接地体由于风化锈蚀引起接触电阻的误差。
... 三σ范围 three sigma limit 三线法 three wires method 三能阶雷射 three-level laser ...
基于20个网页-相关网页
... trilinear form ==> 三线性形式 trilinear method ==> 三线法 trilinear point coordinates ==> 三线点素坐标 ...
基于12个网页-相关网页
三线测螺纹法 three wire measurement ; three wire method
三角接线法 triangle connection
法三线坐标 [数] normal trilinear coordinates
单相三线接法 three-wire connection ; single phase
三角星形接线法 delta-star connection ; mesh-star connection
三线圈法 three-figure method
三线放松法 three line relaxation
三角光线跟踪法 trigonometric ray-trace method ; trace method
由两相换成三相接线法 Scott connection
理论计算和实验表明，“三线法”结合近似函数法在线形分析方面是简便、可靠的。
Theoretical calculations and experiments show that the "three-line" method combined with the approximate function is convenient and reliable, and the accuracy is higher.
目的探讨足印图三线法、比值法和负重侧位X线片数据测量在脑性瘫痪（脑瘫）患儿足外翻康复评估中的临床意义。
Objective To explore the clinical significance of the footprints and lateral X-rays in weight loading in evaluating the rehabilitation of talipes valgus in the children with cerebral palsy.
目的探讨小儿脑性瘫痪引起足外翻的康复治疗方法和足印图三线法、比值法和负重侧位X线片等康复评估方法在小儿脑性瘫痪患儿足外翻康复评估中的应用及临床意义。
Objective To explore the clinical significance of the footprints and lateral X-rays in weight loading in evaluating the rehabilitation of talipes valgus in the children with cerebral palsy.
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