基本解釋[生物學]均衡變異英漢例句雙語例句Theoretical studies of curved girders mainly adopted the methods of balanced method , energy method and variation-based method of virtual work ( displacement ) .曲線梁的理論研究主要采用平衡法、能量法以及基于變分原理的虛功（位移）方法。balanced variation更多例句專業(yè)釋義生物學均衡變異