查询词典 double-ended

By means of these conditions, computer searches out many quasi-perfect and double quasi-perfect binary array pairs with small sizes. The composite construction methods for quasi-perfect and double quasi-perfect binary array pairs are studied.

研究了准最佳和双准最佳二进阵列偶的复合构造法；并利用最佳、准最佳和双准最佳二进阵列偶之间的联系，给出了构造最佳二进阵列偶和准最佳二进阵列偶的方法。

By means of these conditions, computer searches out many quasi-perfect and double quasi-perfect binary array pairs with small sizes. The composite construction methods for quasi-perfect and double quasi-perfect binary array pairs are studied.

本文较为详细地分析综述了几十年来，最佳相关信号的研究成果，它已在现代通信、雷达、声纳、制导、空间测控、以及电子对抗等方面得到了广泛地应用，为工程应用提供更多具有良好相关特性的最佳离散信号是研究最佳离散信号的目的之一。

The relationships among perfect punctured binary array pair, quasi-perfect and double quasi-perfect punctured binary array pair is presented. Specially, when first and second dimension period of the punctured binary array pair are odd, the perfect punctured binary array pair, quasi-perfect and double quasi-perfect punctured binary array are able to change each other.

定义了准最佳屏蔽二进阵列偶和双准最佳屏蔽二进阵列偶，研究了它们的变换性质和频谱特性，给出了它们存在的组合允许条件，利用这些组合允许条件，有效地搜索出若干准最佳屏蔽二进阵列偶和双准最佳屏蔽二进阵列偶。

With the help of these conditions, computer efficiently searches out many quasi-perfect and double quasi-perfect punctured binary array pairs. The relationships among perfect punctured binary array pair, quasi-perfect and double quasi-perfect punctured binary array pair is presented. Specially, when first and second dimension period of the punctured binary ar

定义了非周期屏蔽二元序列偶的自相关函数、屏蔽二元互补序列偶和最佳屏蔽二元互补序列偶，给出并证明了屏蔽二元互补序列偶的变换性质；和它存在的组合允许条件，用计算机搜索出若干最佳屏蔽二元互补序列偶；给出了屏蔽二元互补序列构造出新的屏蔽二元互补序列偶的四种构造方法；并且，给出了利用不同长度的二元互补序列和屏蔽二元互补序列偶构造出新的屏蔽二元互补序列偶的四种构造方法。

Double safe antiskid system, from column ladder safe to close protection by dynamic hydraulic pressure, Ensure double safe stay for vehicle, included guard rail

安全：5、双保险安全防滑落装置，从立柱阶梯保险到电动液压封闭保护，保证车体双重安全滞留，含防护栏

In the "Control Panel", double-click "Network Connections" icon and right-click in the window of the card for Internet connection, select "Properties", in the open window, double-click "Internet Protocol", Open the window, select "Use the following DNS server address" one of the main DNS service providers enter the local ISP's DNS server IP address, DNS in the auxiliary input of the network from within the current browser's IP address or DNS server IP.

在&控制面板&中双击&网络连接&图标，并且在窗口中右击用于 Internet 连接的网卡，选择&属性&，在打开窗口中双击& Internet 协议&，打开窗口后，选择&使用下面的 DNS 服务器地址&一项，在主 DNS 中输入当地 ISP 服务商的 DNS 服务器 IP 地址，同时在辅助 DNS 中输入当前内网路由器的 IP 或者 DNS 服务器地址的 IP 。

In order to obtain more exact analytical solution to study the output characteristics of double-clad fiber lasers,according to the continuous-wave rate equations of fiber lasers,using typical parameters of double-clad fiber lasers,the contribution of the re-emission effect arising from the interaction between the upper-level atoms and pump light was estimated.Taking into account the predominant part of the re-emission to improve the accuracy of the integration approximated rate equations,the integration of the product of the loss and radiation should be found and explicit analytical expressions for the output of the DCFLs and gradient efficiency of the pump radiation,were deduced,and certain issues of concern were discussed.

为了求得用于研究双包层光纤激光器输出特性的更为精确的解析解，根据稳态速率方程组，针对典型的双包层光纤激光器参量，在估计了上能级粒子再发射项和抽运光产生的影响后，采用保留再发射贡献主导部分的办法以提高可积分近似方程的精确度，明确地提出了要获得光纤激光器输出功率的解析表达式的关键在于求出损耗系数与光场乘积的积分值，简洁地求得了输出功率和抽运光斜线效率的显函数解析表达式，并对其相关问题进行了讨论，以915nm，920nm和975nm的抽运光为例，当输出激光为1090nm时，得出975nm抽运光产生的斜率效率最高并可高达约87%。

Based on the prediction model for uncatalytic double base propellant burning rate the dissertation, carrys on the mathematical treatment to the hypothesis of polyemerization and disintegration, deduces the formula of catalytic double base propellant burning rate and pressure exponent; The results of experimental tests show that it can re-present quantitatively various stage of plateau combustion: super rate, plateau and mesa. The calculated results conform with the experimental results very well.

在非催化双基推进剂燃速预估理论的基础上，对聚合裂解的假设进行数学处理，导出催化双基推进剂的燃速公式和燃速压力指数公式；实验验证结果表明，模型中的公式可以定量地再现双基平台推进剂燃烧中的超速，平台和麦撒现象，而且计算值和实测值符合得较好。

At the same time, the finite staff element method is used to analyze the influence of beam rigidity; and the two new methods proposed are used to analyze the influence of connect way between piles and beam; and the conclusion is obtained that the rigidity ratio between beam and piles being 0.48 is appropriate; the continuative increase of the rigidity ratio is not significant; the worst condition is that connecting way between piles and beam is hinged; the best condition is that connecting way between piles and beam is rigid. Whether is single-row pile or are double-row piles, when the front of single-row pile or the front of the front-row pile(in the double-row piles) needed excavation, it is supposed to that ought to be carefulness to excavate, because it is that the engineering cost increased greatly.

同时，用有限杆单元法，对双排桩的连梁刚度和用文中提出的方法以桩梁连接方式进行了试验和理论分析得出如下结论：在满足不相互影响排桩间距的情况下，桩顶连梁与桩的刚度比不小于0.48是合适的，此时再增加连梁刚度无意义；桩梁连接为铰结时双排桩受力变形性质最差，刚结时受力变形性质最好；不论是单排桩还是双排桩，桩前和前排桩桩前土体需要开挖时应慎重，因为这种开挖对支护结构影响很大，造价增加很多；双排桩省钱，而且抵抗变形的能力强，值得在工程中研究和广泛应用

The pipe string includes double hydraulic cylinder with anchorage packer、double hydraulic cylinder without anchorage packer、releasing tool、reversing valve and centralizer.

该工艺管柱主要由双缸液压锚定封隔器、双缸液压无锚定封隔器、液压丢手工具、换层开关、扶正器等工具组成。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。