the elastic superposition theory based on the interaction coefficient and the method of substructure were employed to get the settlement of pile group, and the results of two method were compared.
the sound field superposition theory is used to prove the formulas for the sopnah.
运用声场叠加原理,证明了统计最优平面近场声全息的理论公式。
based on the potential superposition theory and method of mirror, the potential spatial distribution of the stepped type horizontal well production section in the thin interbed reservoir are deduced.
an analysis of improved functions of the calender with different diameter rolls is presented with reducing the separating force and superposition theory of simple harmonic motions.