双相组织 meaning in Chinese

duplex structure

The results reveal that the microstructure of the nb - si system intermetallics consists of nb and nbasi phases . because of unstable microstructure of nfysi phase at high temperature , the equilibrium nb + nbssia dual - phase microstructure of the nb - si system intermetallics should be acquired by means of heat - treatment
研究表明，采用电弧熔炼和单晶生长技术制备的nb - si系金属间化合物的显微组织主要由nb + nb _ 3si组成，而由于nb _ 3si相在高温下是不稳定的，为了得到稳定的nb + nb _ 5si _ 3双相组织，必须对材料进行热处理。