satin spar是什么意思

用法例句

Developments of efficient sound absorption of fiber-gypsum functional composite materials;

高效纤维-石膏功能复合吸声材料的研制

Experimental study on seismic behaviors of fiber plasterboards filled with concrete core columns with different spacings;

纤维石膏板中不同间距灌注混凝土芯柱抗震性能试验研究