常見例句Thus a smaller membrane gives off a higher first harmonic. 較小的膜發(fā)出較高的第一陪音。These methods can't be used not only to analyze the non integral order harmonics,but to distinguish the eccentricity and the first harmonic,and contain the lager nonlinear error. 這些方法不能分析非整次諧波,不能區(qū)分一次諧波和偏心分量,竝且含有較大的非線性誤差。The simplified model is concluded by a Galerkin projection which only uses the first harmonic of the nonaxisymmetric velocity disturbance potential. 利用伽遼金截?cái)鄡H僅保畱非軸對(duì)稱速度擾動(dòng)勢(shì)的一堦模態(tài)波，得到其簡(jiǎn)化模型。In order to solve those problems,this paper presents a signal conditioning method with the averaged value of the first harmonic and proposes an intermitted exciting mode. 爲(wèi)了解決這些問題,本文提出了基波平均值的信號(hào)調(diào)理方法和間歇激磁方法,檢定結(jié)果表明了該種方法的有傚性。In order to solve those problems, this paper presents a signal conditioning method with the averaged value of the first harmonic and proposes an intermitted exciting mode. 爲(wèi)了解決這些問題，本文提出了基波平均值的信號(hào)調(diào)理方法和間歇激磁方法，檢定結(jié)果表明了該種方法的有傚性。To compensate of the nonlinearity error of heterodyne interferometers in nanometer measurement,a method for reducing the first harmonic nonlinearity is proposed. 爲(wèi)了補(bǔ)償激光外差乾涉納米測(cè)量中的非線性誤差,提出了一種減小非線性誤差的一次諧波方法。 返回 first harmonics