By freezing chitosan - gelatin complex induced phasic abruption, the porous and ventilative sponge of chitosan - gelatin was made.
通過冷凍殼聚糖 - 明膠共混液誘導(dǎo)相分離的方法,可以制成多孔性、親水性 、 透氣性良好的海綿狀傷口敷料.
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Pull rod is the main bearing part of compact rolling mill and usually occurred abruption accidents.
拉桿是緊湊式軋機(jī)的主要受力件,經(jīng)常發(fā)生斷裂事故.
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