mier造句

• In the beginning , study on the damage characteristic of concrete due to loading history based on bp network , has been carried out for the first time . according to the simulative results , the laws of damage are investigated using mier ' s viewpoint that the cracks within concrete can be divided into two types - initiative one and passive one
  在这部分，首次利用bp网络对混凝土载后损伤特性进行了模拟和预测，并且运用mier的主动和被动裂缝的观点对混凝土载后的损伤演化规律及损伤机制进行了研究和分析。