biw meaning in English

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Experimental study on impact characteristic of minibus biw
微型客车白车身碰撞特性的试验研究
And it could shorten the time to build the body model and ensure the enough accurate rate on engineering . secondly , the methods to deal with the welded spots in this dissertation are used to build the fem model of biw ( body in white )
然后,将本文对车身焊点的处理方法应用到白车身有限元模型的建立中,其有限元模态分析结果与样车的实验模态分析结果吻合较好。