词汇	undulation mode
释义	undulation mode 波动模式
随便看	less-than-desirable less-than-earloads freight Less Than Four-Year College Less than Full Exchange less than half a loaf less-than-honest less-than-honorable less than human less-than-ideal less-than-lethal less-than match less than normal refraction less than no time less-than operation less-than operator less than optimal less-than-optimal less than or equal less than or equal to Less than or equal to less-than or equal to less-than-or-equal-to less-than or equal to operator less-than-perfect less than perfectly rational