查询词典 second-grade

A computer host shell, consists of one side plate, backplate installed on this side plate, top and bottom plate respectively installed above and below this side plate and backplate, panel installed on this side plate and opposite with the backplate, and another side plate opposite to this side plate, in which, this side plate is used for installing the mainboard with different frameworks, this backplate includes: one frame, which has one of the first opening and one of the second opening for installing the power supply; one of the first piece, with several slots in parallel and several bar pieces arranged between adjacent slots; one of the second pieces, with a connector opening and several vents; the first piece and the second piece are installed at the second opening in parallel, and both may be removed and exchanged their positions to meet with the mainboard with different framework.

一种计算机主机机壳，包括一侧板、安装在该侧板上的背板、分别安装在该侧板和背板上下两侧的顶板与底板、安装在该侧板上且与背板间隔相对的面板，以及与该侧板相对的另一侧板，其中该侧板用于安装不同架构的主机板，该背板包括：一框架，该框架上设有用以安装电源供应器的一第一开口及一第二开口；一第一片体，其上设有若干并列的槽孔及设在相邻槽孔之间的若干栅片；一第二片体，其上设有一连接器开口及若干通风孔；第一片体和第二片体并列安装在框架的第二开口，且两者均可拆卸并交换两者在框架上的安装位置以适配不同架构的主机板。

Applying the De Caen"s inequality of sum of the squares of the degree and Cauchy"s inequality, we obtain a strict lower bound and a strict upper bound of the largest Laplace eigenvalues only in terms of vertex number of a unicycle graph. Applying the Laplace matrix theorem of trees, we obtain an upper bound of the second smallest Laplace eigenvalues of a unicycle. Extremal graph whose second smallest Laplace eigenvalues reach the obtained upper bound is determined. We also obtain an upper bound of the second largest Laplace eigenvalues in terms of vertex number of the largest connected branch of unicycle graph, and obtain a theoretical method to calculate the second largest Laplace eigenvalues of unicycle graph. We obtain an upper bound of any Laplace eigenvalues in terms of vertex number of a unicycle graph. We also obtain the distribution of Laplace eigenvalues in the inter [0,n] in terms of the matching number.

本文得到了以下几个方面的结果： 1、利用图度平方和的De Caen不等式和Cauchy不等式给出单圈图的最大Laplace特征值仅依赖于顶点数的严格的上下界；利用树的Laplace理论给出了单圈图次小Laplace特征值的一个上界，并刻画了达到该上界的极图；利用子图的连通分支的顶点个数给出了单圈图次大Laplace特征值的一个上界，并给出了单圈图次大Laplace特征值一个理论上的一个求法；利用单圈图的阶数给出了其一般Laplace特征值的一个上界；利用单圈图的匹配数给出其Laplace矩阵谱在区间[0，n]上的分布情况。

In a disk device, a base body (10) has a drawing lever (80) for inserting a disk, a discharge lever (100) for discharging the disk, and a slider mechanism for pivoting the drawing lever (80) and the discharge lever (100). The slider mechanism has a first cam groove for sliding a first pin of the drawing lever (80) and a second cam groove for sliding a second pin of the discharge lever (100). The drawing lever (80) pivots when the first pin slides in the first cam groove as the slider mechanism operates, and the discharge lever (100) pivots when the second pin slides in the second cam groove as the slider mechanism operates.

该光盘装置，在基座本体(10)上设置插入光盘的引入杆(80)、排出光盘的排出杆(100)以及使引入杆(80)和排出杆(100)转动的滑动机构；在滑动机构上具有使引入杆(80)的第一销滑动的第一凸轮槽和使排出杆(100)的第二销滑动的第二凸轮槽；通过第一销随着滑动机构的动作在第一凸轮槽内滑动，引入杆(80)进行转动，通过第二销随着滑动机构的动作在第二凸轮槽内滑动，排出杆(100)进行转动。

The first ethynyl group is reacted with the first reactive group in a first carbon-carbon bond formation reaction and the second ethynyl group is reacted with the second reactive group in a second carbon-carbon bond formation reaction to crosslink the first backbone with the second backbone, thereby forming the packaging substrate.

在第一个碳－碳键生成反应中，使第一个乙炔基与第一个反应性基反应，在第二个碳－碳键生成反应中，使第二个乙炔基与第二个反应性基反应，将第一种主链与第二种主链交联，从而制成组装基片。

More specifically, the invention relates to an antenna (1) comprising: first (2) and second (3) linear sub-antennas which are equipped with sensors (21-2M, 31-3N) forming first and second line segments and generating a basic signal, the angle between the respective directional vectors of the first and second tangents to the midpoint respectively of the first and second line segments being between 30 DEG and 150 DEG ; an antenna processing device (4, 5) forming combined signals; a signal-processing device (6, 7) generating combined useful signals; a device (8) for calculating the correlation coefficients (Cij between the combined useful signals; and a device (8) for generating a detection signal (Rij when a correlation coefficient exceeds a threshold.

更具体地，本发明涉及一种天线(1)，包括：带有形成第一和第二线段并产生基本信号的传感器(21-2M，31-3N)的第一(2)和第二(3)线性子天线，第一和第二线段各自中点的第一和第二切线的对应方向矢量之间的夹角在30°和150°之间；形成组合信号的天线处理装置(4，5)；产生有用组合信号的信号处理装置(6，7)；计算有用组合信号之间的相关系数(Cij的装置(8)；以及当某相关系数超过阈值时产生检测信号(Rij的装置(8)。

A second subnumber is calculated for the second number as the multiplicative inverse of the first number with respect to a second submodule (120) that equals the second prime number minus 1, the first submodule and the second submodule being relatively prime.

计算该第二数的一个第二子数做为该第一数的相对于一个第二子模数(120)的一个倍数逆数，该第二子模数等于第二质数减1，第一子模数与第二子模数互质。

In chapter four, we study the second isoperimetric connectivity of line graphs and line digraphs. For line digraphs, we show that the second isoperimetric connectivity of strongly connected line digraphs with δ≥ 2 equals its connectivity. For line graphs, we give a sufficient and necessary condition for the existence of the second isoperimetric connectivity, and we show that under the condition that the second isoperimetric connectivity exists, the second isoperimetric con

第四章研究线图和有向线图的第二等周点连通度，得到了如下结果：(1)最小度大于等于2的强连通有向线图的第二等周点连通度等于它的点连通度；(2)对于无向线图，我们给出了第二等周点连通度存在的充要条件；(3)对于第二等周点连通度存在的无向线图，它的第二等周点连通度或者等于限制点连通度或者等于最小度和次最小度的和。

The circuit comprises a comparison circuit, a negation gate and a first coincidence gate, wherein the comparison circuit is used to output read screen signals of a storage unit corresponding with bus signals of a second port address, the negation gate is used to inverse the read screen signals of the storage unit which are corresponding with the bus signals of the second port address, one input end of the first coincidence gate receives the read screen signals of the storage unit which are corresponding with the bus signals of the second port address after being inversed, the other input end of the first coincidence gate receives the read enable signals of a second port, and the output end of the first coincidence gate is connected with the read enable end of the second port.

所述电路包括：比较电路，用于输出第二端口地址总线信号对应的存储单元读屏蔽信号；非门，用于对第二端口地址总线信号对应的存储单元读屏蔽信号进行非运算；第一与门，第一与门的一路输入端接收非运算后的第二端口地址总线信号对应的存储单元读屏蔽信号，第一与门的另一路输入端接收第二端口的读使能信号，第一与门的输出端连接第二端口的读使能端。

Aiming at this problem, the concept of the second order power spectrum was proposed based on the characteristic of the amplitude tune with periodical notch spectrum in thin layer and theoretically researched. The corresponding relationship between the thickness of thin layers and the maximum value of second order power spectrum was established. The theoretical criteria and method for the thickness estimation by second order power spectrum were given. The second order power spectrum map is made by the energy relationship between the thickness of thin layers and the second order power spectrum, and the time responding to strong energy on the map is the time of thin layer.

为此，从薄层振幅调谐具有周期性陷频谱特征出发，提出了二阶功率谱的概念，从理论上对薄层的二阶功率谱特征进行了研究，建立了薄层厚度与二阶功率谱极大值之间的对应关系，给出了利用二阶功率谱进行薄层厚度预测的理论依据和方法，即根据薄层厚度和二阶功率谱的能量关系制作二阶功率谱图，图上强能量团对应的时间即为薄层时间厚度。

According to the invention the second light element is formed as a separate LED module with a fitting and a second lamp cap whereby the first and the second light elements are removably attached via the fitting and the second lamp cap, the fitting and second lamp cap providing electrical and mechanical connection between both light elements.

根据本发明，第二光元件被形成为具有配件和第二灯帽的分开的LED组件，由此第一和第二光元件通过该配件和第二灯帽被可移动地附着，该配件和第二灯帽提供两个光元件之间的电气和机械连接。

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。