By freezing chitosan - gelatin complex induced phasic abruption, the porous and ventilative sponge of chitosan - gelatin was made.
通过冷冻壳聚糖 - 明胶共混液诱导相分离的方法,可以制成多孔性、亲水性 、 透气性良好的海绵状伤口敷料.
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Pull rod is the main bearing part of compact rolling mill and usually occurred abruption accidents.
拉杆是紧凑式轧机的主要受力件,经常发生断裂事故.
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