单词	研究目的
释义	研究目的 yánjiū mùdìresearch objective
随便看	super-position layer Superposition manners superposition mesh method superpositionmethod superposition method superposition method of vibration superposition model Superposition of admittance changes superposition of blasting vibration superposition of coherent state superposition of directive pattern superposition of electric fields superposition of end gap superposition of flow patterns superposition of harmonic superposition of harmonic waves superposition of images superposition of light superposition of mineralization superposition of oscillations superposition of potential flow superposition of signal superposition of signals superposition of state superposition of stress