By the theory of complex functions, a penny-shaped crack on axially symmetric propagating problems for composite materials was studied.
复变函数论的方法，对复合材料的圆盘状裂纹的轴对称性扩展问题进行研究。
Haskind discussed the non-steady motions of small curved planing plate by using the theory of complex functions, and obtained the general expression of hydrodynamic forces.
哈斯·金德用复变函数理论讨论了微弯滑行板的非定常运动，获得了计算水动力的一般公式。
Line integrals are used extensively in the theory of functions of a complex variable.
在复变量函数理论中广泛使用线积分。
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