Objective To explore micro-perfusion in graft after liver transplantation with contrast-enhanced ultrasound.
目的运用超声造影技术研究移植肝微灌注状况。
When modification graft before emulsion dispersion in solvent was adopted, micro phase separation of soft and hard segments in molecular chains was enhanced greatly and its thermo-stability improved .
而采用在溶剂相中改性接枝再乳化分散的方式，分子链中软硬段的微相分离加剧，热稳定性提高。
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