Spacewalking astronauts installed an 88-million-dollar spectrograph designed to detect faint light from faraway quasar .
太空漫步宇航员装8.8千万美元的光,用于自遥远类星体的微弱光线。
Spacewalking astronauts installed an 88-million-dollar spectrograph designed to detect faint light from faraway quasar .
太空漫步宇航员装8.8千万美元的光,用于自遥远类星体的微弱光线。
A sample of each coating is expozed on an Eastman 1B sensitometer and to a wedge spectrograph.
各涂层样品用1B感光对着光楔摄曝光。
This paper has studied the phthalocyanin complex of Cobalt synthesized by benzene bitter wine-urea law,and after depuration,an infrared, ultra-violet spectrograph determination is carried.
文章主要研究了苯酐-尿素法合成酞菁钴、经提纯并对其进行红外、紫外光定、合成及表征结果表明,红外光表征推结构可靠,紫外光分析表明有特征吸收峰之处。
Methods Video-stroboscopy was used to reveal the laryngeal cavity and dynamic changes of the vocal fold, and sound spectrograph was used to examine audio frequency, pitch and width.
方法用频闪喉镜显示患者喉腔全貌和声带的动态变化,用声门分析检并记录患者发声的频率、音调和音域。
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