常見例句雙語例句The general theories behind echelle and its applications in astronomy are briefed, and the differences between echelle spectrograph and plane grating spectrograph are analyzed and compared.簡述階梯光柵的基本原理和在天文學(xué)中的應(yīng)用，分析并比較了階梯光柵光譜儀與普通平面閃耀光柵光譜儀的區(qū)別。This paper presents the studies of the dependence of soft X-ray emission on atomic-number and laser intensities by using a new diagnostic tool, pinhole transmission grating spectrograph (PTGS).利用帶有針孔的透射式光柵光譜儀研究了激光等離子體X射線輻射的原子序數(shù)依賴性和激光功率密度對(duì)輻射的影響。Methods:Use the Grating Spectrograph to take photograph of atomic emission spectrum of unknown sample and make quantitative analysis Results:Quantitative determination of trace elements in nutriment.方法：用平面光柵攝譜儀拍攝未知樣品之原子發(fā)射光譜圖，并作定量分析。 結(jié)果：測定營養(yǎng)品中微量元素的含量。 返回 grating spectrograph