strain sensitivity短语¹⁴⁴⁹⁷²⁺² 基本例句 应变敏感性 The strain sensitivity characteristic of long- period fibre gratingLPFG was studied by coupled- mode theory and the strain/span> sensitivity analytic equation of the resonant wavelength was deduced. 对长周期光纤光栅传输谱谐振波长的应变特性用耦合模理论进行研究，推导出谐振波长应变灵敏度的解析表达式。 cnki