品质因素Q相关论文
选取有代表性的岩石样本，实验室模拟地下岩层的实际物理状态，对P波的品质因素Q和波速进行了测试，结果表明，松辽盆地地下岩层的P波Q和波......
用固相法制备了La2O3掺杂的CaO—MgO—Nb2O5-TiO2系微波介质陶瓷，通过改变La^3+离子的含量以调整改变CaO—MgO—Nb2O5-TiO2-La2O3系......
In order to realize automatic tracking drift of resonance frequency of ultrasonic vibration system with high power and h......
