velocity discontinuity波速: wave velocity; ray velocity不: a block of wood连续性: continuity; solidity; sequen ...不连续性: discontinuity; discreteness; discretion; uncontimuity; uncontinuity不连续性，缺陷: discontinuity下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:波速不连续性，即可在微信中查询翻译
