Many years of experience have shown that sheep are the best donor animals because they are vital, hardy animals with supererior immune systems and natural disease resistance.
The research results have the vital scientific significance to the structure earthquake resistance protection, preventing and reducing earthquake disasters work.
本文的研究成果对结构抗震设计和防震减灾工作具有重要的科学意义。
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Chemical resistance information is vital when constructing or specifying FRP composite equipment for operating in harsh chemical environments.