一阶

The study showed that spectra information can be extracted thoroughly by the pretreatment method of first derivative combined with standard normal variate, with the SEC of 0.002 5, SEP of 0.006 6, and determination coefficients of 0.988 4 and 0.922 7 respectively.

分析表明采用一阶导数结合标准归一化处理能最有效地提取光谱信息，此时PLS模型校正集决定系数与检验集决定系数分别为0.988 4与0.922 7，校正标准误差与预测标准误差分别为0.002 5与

A method for synthesizing symmetric hinged 4-bar li nkage approximate to a straight line with a first ovdered osculation at three points of a given straight line was proposed.

提出了一种综合与给定直线在三个点上一阶密切的对称铰链四杆近似直线机构的方法。

In this paper, based on the 1st order Taylor's expansion approximation interpolation, a realtime parametric curve interpolation algorithm is proposed in this paper, which can automatically adjust feedrate to confine the contour error within a given tolerance.

本文在一阶泰勒展开近似插补方法的基础上，给出了一种能够自动调整进给速度，将轮廓误差限定在允许范围之内的参数曲线的实时插补方法。

Based on finite element method of flexibility and approximate expression of the structural flexibility matrix changes due to structural damages by first class Tayler approximate expansion of structural physical parameters of the initial flexibility matrix, the new damage identification method was put forward.

在采用柔度阵法进行结构损伤识别研究中，从柔度阵出发，进行结构有限元分析。通过对损伤引起的结构柔度阵的变化在初始柔度阵处关于结构物理参数的一阶泰勒近似，首次提出了一种基于有限元分析的结构损伤识别的柔度阵法。

This has led some people who design the specification mechanisms for programming languages, or in the case of UML, for modeling languages, to include facilities from first-order predicate calculus as a language extension.

这就促使一些人在编程语言的描述机制和建模语言处理机制中加进了部分一阶谓词演算的东西，作为一种功能扩展。

A calibration scheme of calibrating some parameters, such as the principal point, focal length, distortion, of star sensor is brought forward.

论文提出了一种对星敏感器的主点、焦距、一阶径向畸变等参数进行标定的方法。

A first order quasi phase matched periodically poled LiNbO 3 for SHG with 6.5 μm period, 12 mm length, 10 mm width and 0.5 mm thickness has been successfully fabricated by applying an external electric field at room temperature from an high pulsed voltage generator. About 18 mW of CW 0.532 μm green light was obtained pumped by an 1.1 W of CW 1.064 μm Nd∶YAG laser with end coupling, which corresponds to 1.6% power conversion efficiency.

通过高压脉冲电场极化，制备了周期为6.5 μm、长为12 mm、宽为10 mm、厚为0.5 mm的一阶准相位匹配周期性极化铌酸锂；由1.1 W连续1.06 μm Nd：YAG激光器抽运，在5°时产生了约18 mW、0.532 μm的倍频连续绿光，其对应的二次谐波转换效率约为1.6%，二次谐波的归一化转换效率约为1.5% cm-1W-1，相当于79%的周期性极化铌酸锂的理想非线性系数。

Opener's reverse after a one-level suit response is forcing and promises a rebid below game.

一阶新花应叫之后的开叫者逆叫为逼叫且保证在成局前的一次再叫。

In order to overcome this problem, in this paper, the surface electric current of the conducting sea surface and the first-order scattering from the conducting plate are obtained by employing Physic Optics method. The backscattering field of the time-dependant sea surface is calculated by using Kirchhoff Approximation. Meanwhile, taking the advantage of a newly developed technique that utilizes the reciprocity theorem, the difficulty in formulating the secondary scattered fields from the composite target is reduced. The dependences of the backscattered field on the parameters, such as the wind speed and the sizes of the plate are discussed.

为了克服这一问题，本文应用物理光学近似求解了导体海面表面电流及导体平板的一阶散射场，应用基尔霍夫近似给出了海面的后向散射场，同时借助互易性定理降低了求解平板和海面之间二次耦合散射场的难度，讨论了平板尺寸、风速等对后向复合散射场的影响。

N this paper, a labeled sequent calculus for Interval Temporal Logic is proposed.

TL是一阶模态逻辑，它包含了一称为"劈"的二元模态算子。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。