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。
Female mice serum and vaginal secretion antibodies , their fertility and the pathological changes were determined . on the other hand , the effects of the anti - serum against synthetic peptide on the sperm - egg interaction during ivf and the location of p3 peptide in sperm were watched . the main results and conclusions were as follows : 1 ) the new antigen p3 peptide which harvested from the 430a peptide synthesizer were verified by the mass spectrograph and hplc , that the ratio of mass / charge of the synthetic peptide was equal to the molecular weight in theory and its purity was above 95 % 本研究的主要结果和结论如下:一、经抗原分子设计,在430a自动肽合成仪上合成的新抗原p3 ,经质谱仪分析证明其荷质比与理论一致;纯化后,其纯度大于95 ;将新抗原与klh偶连后免疫小鼠,经westernblot证实其诱导的特异性抗体可识别小鼠、大鼠、人睾丸组织中分子量约为22kd和55kd左右的蛋白质。
Acoustooptic deflector is the significant component of the optical devices such as integrated optical spectrograph , tunable filter , scanner , convolver , correlator and optical switch etc . acoustooptic deflector can be divided into collinear and non - collinear , bulky and wave - guided , body devices and surface devices 声光偏转器是集成光学频谱仪、可调谐滤波器、扫描仪、卷积器等光学器件的重要组件、声光偏转器可分为共线式和非共线式、块体型和波导型以及体波器件和表面波器件。
The durations of good imaging within a fixed year are preliminarily obtained by statistical analysis of imaging quality obtained from spectral observations in 1982 with the horizontal spectrograph installed at the yunnan observatory . the results show that in the autumn , september and august , a good image is usually available . for a daytime , there are two time intervals during which the solar image is relatively better than other time , one is in the morning 2 3 hours after the sunrise ; another in the afternoon 3 4 hours before the sunset , and it lasts about 0 . 5 1 . 0 hours for each 通过对云台水平式太阳光谱仪1982年太阳光谱观测中的成像质量情况统计分析,初步得到光谱仪一年中成像质量优良的时间在秋夏9月和8月份;一天内有两次像质优良的时间,上、下午各有一次,分别在日出后2 3小时和日落前3 4小时各有半小时到1小时左右的时间。
a photographic record of a spectrum 同义词:spectrogram,
a spectroscope by which spectra can be photographed
百科解释
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.