单词	national ethos
释义	national ethos 民族精神
随便看	non-linear operator nonlinear operator equation nonlinear operator equation system nonlinear operator theory non-linear operator theory Non-linear opimization nonlinear optical non-linear optical nonlinear optical absorption nonlinear optical chromophore nonlinear optical coefficient nonlinear optical coefficients nonlinear optical crystal nonlinear opti cal crystal nonline ar optical crystal non-linear optical crystal nonlinear optical crystals nonlinear optical devices nonlinear optical effect non-linear optical effect nonlinear optical element Nonlinear optical fiber nonlinear optical fiber coupler nonlinear optical fiber loop mirror nonlinear optical frequency conversion