instrumental adj. 1.儀器的,器械的,器具的 〔cf. vocal〕。 2.樂器(上)的,為樂器譜曲的,用樂器演奏的。 3.作為手段[工具]的,有幫助的,起作用的。 4.【語法】工具格的。 instrumental drawing 器械畫。 instrumental errors 儀器誤差,儀表誤差。 an instrumental ensemble 器樂重奏曲。 instrumental music 器樂。 instrumental parts 器樂部。 be instrumental to a purpose 對(duì)目的有幫助。 instrumental in improving the qualities of our products 有助于提高我們產(chǎn)品的質(zhì)量。 -ist 1.n. 器樂演奏者;工具主義者。 2.adj. 主張工具主義的,根據(jù)工具主義的。
Topics include statistical inference , regression , generalized least squares , instrumental variables , simultaneous equations models , and the evaluation of government policies and programs 主題包含了統(tǒng)計(jì)的推論、回歸、一般化最小平方、工具變數(shù)、聯(lián)立方程模式、以及政府政策與計(jì)劃的評(píng)估。
Specially for the particularity of the path - length control system in the laser gyros consist of total reflecting prisms and the necessity of identifying the parameters in the system , the mathematical model of the temperature control system in the trp laser gyros is presented , and three new identifying algorithms are deduced in theory based on the method of the least squares : algorithm of immediately identifying , algorithm of instrumental variables and recursion algorithm 摘要針對(duì)全反射棱鏡式激光陀螺腔長控制系統(tǒng)的特殊性及其模型參數(shù)辨識(shí)的必要性,給出trp激光陀螺溫度控制系統(tǒng)的數(shù)學(xué)模型,并基于最小二乘法從理論上分析推導(dǎo)出3種新型參數(shù)辨識(shí)法:直接辨識(shí)算法、輔助變量法和遞推算法。