在考虑晶体的压电性和各向异性基础上，从声的波动理论出发，对叉指换能器在液体-压电晶片界面上兰姆波的激发理论及其性质进行了研究。
To solve these problems, the properties of Lamb wave excited by interdigital transducer in the piezoelectric substrate covered by liquid were studied based on its piezoelectricity and anisotropy.
它消除了由于液体流动引起的各向异性，克服了溶剂挥发以及可能出现的外溢染料对操作人员的环境的危害。
Because it eliminates the liquid flow of anisotropy, overcome the solvent evaporation and the possibility of spills dye in the operation of environmental hazards.
干燥岩石各向异性很弱，液体促进了饱和岩石各向异性的增强。
The anisotropy of dry rocks is very small, while it is enhanced by the fluids.
干燥岩石各向异性很弱，液体促进了饱和岩石各向异性的增强。
The anisotropy of dry rocks is very small, while it is enhanced by the fluids.
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