hypersonic speedsuperacousticsupersonic eedsupersonic speedsupersonic velocitysupersonicsultrasonic speedultrasonic velocityultrasound velocity速: fast; rapid; quick; speedy超声速,超音速: supersonic speed超声速泵: supersonic pump; surface wash pump; upersonic pump超声速测量: measurement of ultrasonic speed超声速冲响: supersonic bang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:超声速,即可在微信中查询翻译