The strength of tangential stress showed relation with the angle between kidney and puncture needle, and the angle between renal long axis and the long axis of body.
切线力的大小一是与穿刺针和肾表面间角度有关,二是与肾脏长轴和人体长轴间角度有关。
discussion on puncture intensity and pop strength of corrugated board
瓦楞纸板戳穿强度与耐破强度相关性的探讨
The tests on mechanical failing load, power frequency puncture voltage and residual strength of glass insulators after 30~ 40 years service were made.
对运行30~40年后的玻璃绝缘子进行了机械破坏负荷、工频击穿电压及残留强度等试验。
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