VA

Main compositions: Spring water extract, VA acid, Protein complex, Extract of sweet tea, Sorbierite extract.

精、VA酸、蛋白复合物、茶萃取液、山梨醇精。

Objective To investigate the characteristics of hypermetropic children whose visual acuity (VA) is declined or accompanied by esotropia.

远视儿童中具有视力低常或内斜视等视功能障碍的患儿的临床特点。

The material is pervaded with va rious performances of light weigh so und absorption,heat preservation,insulation,hig h-temperaure resistance,corrosio n resistance,noninflammability an d antibiosis.

该材料具有重量轻、吸音、保、绝缘、耐高、耐腐蚀、不燃等优良特性,尤其具有良好的抗菌作用,是一种高性能的节能型的复合材料。