单词	所需信号
释义	所需信号 Suǒ Xū Xìn Hàorequired signal
随便看	downward illumination downward inclination downward inclined pipe downward inclined pipeline downward infectious pyelonephritis downward infiltration downward information flows downward irradiance downward landscape down ward length of bucket chain downward light output ratio downward light output ratioof a luminaire downward line downward Loewenheim-Skolem theorem downward logic-transition downward looking downward-looking cup-type packer downward looking infrared downward-looking infrared downward-looking laser line scanner Downward-looking scene matching downward Lowenheim-Skolem theorem downwardly downwardly inclined pipe downwardly mobile