And when observers take a spectrum of the galaxy , the diffraction grating of the spectrograph disperses the light over a large area on the detector , rendering the signal even fainter at each wavelength 而当观测者撷取星系光谱时,光谱仪的绕射光栅会把光分散到侦测器上一个很大的?围,导致每个波长上的讯号更加微弱。
A “ cosmic origins spectrograph ” will examine the structure and composition of the matter concentrated in the “ cosmic web ” ? long , narrow filaments of galaxies and intergalactic gas separated by huge voids “宇宙起源光谱仪”将检查聚集在“宇宙网” (星系和星系间气体被巨大的空间分隔所组成的狭长线)中的物质的结构和组成。
Solar radio metric wave radiation events observed using the acoustic - optic spectrograph at the yunnan observatory in march of 1991 with associated optic activity and correspanding evevts are analyzed . some characteristics of the events are obtained in this paper 利用云南天文台声光频谱仪在1991年3月记录到的太阳射电米波辐射事件、光学活动及相关事件作了分析,得到来自6538活动区太阳射电米波事件的一些基本特性。
In this thesis , the stearic acid and titanate - coupling agent were used to modify the surface of aragonite whisker . the ir - spectrograph analysis and the suspending - experiment showed that the two ingredients were effective to modify the aragonite whisker , and the titanate - coupling agent was better than stearic acid 红外光谱仪分析和悬浮实验表明二者均能有效地对文石相碳酸钙晶须实行改性,且达到完全改性时钛酸酯用量少于硬酯酸。
The types of the detection equipments and apparatus are over 100 , such as x - ray detector , r - ray detector , digital ultrasonic flaw detector , eddy current flaw detector , eddy current flaw detector , magnetic memory metal diagnostic instrument , acoustic emission testing an analyzing system , three - dimensional ultrasonic testing system , microcomuterhydraulic pressureniversal testing machine , metalloscope , portable direct - read spectrograph , have achieved the national advanced technology 拥有各种检测设备100多套,如射线探伤机、数字式超声波探伤仪、涡流探伤仪、磁记忆金属诊断仪、声发射检测及分析系统、三维超声波检测系统、便携式直读光谱仪、微机式液压万能试验机、金相显微镜等,达到国内先进水平。
A spectrograph is an instrument that separates an incoming wave into a frequency spectrum. There are several kinds of machines referred to as spectrographs, depending on the precise nature of the waves.