Solves the problem of boundary value on an annular crack by using the nonlocal stress solution of an axisymmetric crack problem and approximative method of series expansion.
利用已得到的三维轴对称问题的非局部弹性应力的解，采用级数近似展开的方法，求解环状裂纹的边值问题。
Objective To evaluate the diagnostic value of annular enhancement sign on enhanced ct scans in tuberculoma.
目的评价CT增强扫描环形强化征对肺结核瘤的诊断价值。
Objective to investigate the clinical value of phase analysis by mitral annular movement in assessment of left ventricular diastolic function.
目的探讨二尖瓣环时相评估左室舒张功能的临床意义。
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