查询词典 block

In response to the "Buy American" provision in the US stimulus package, the Federation of Canadian Municipalities has passed a resolution that could potentially block US companies bidding on city contracts, CBC News reported.

据加拿大广播公司报道，加拿大城市联盟近日通过一项"不买美国货"决议，在未来在进行采购合同招标时，将不考虑美国公司，以反对美国经济刺激计划中有关"购买美国货"的条款。

The main research results in this dissertation can be given as following:Firstly, the bidding strategies and affections of generation companies on the TOU power price are analyzed; Supply function model is employed to simulate the bidding strategies of generation companies in power pool. Some meaningful results are obtained through the proposed equilibrium equations model, when different bidding parameters are selected to maximize profit of suppliers, such as the the numeral of generation company, the block bidding, and power demand elasticity. Based on these results, the affections between the bidding strategies and the TOU power price are discussed.Secondly, the important principles consider the factor of bidding strategies of generation companies and consumers gaming strategies are proposed to constitute the new TOU power price model under present electricity market. Based on these pricinples a new mathematical model of TOU power price is constructed, to evade electricity market risk, partition the peak-valley, ascertain the consumers' response curve, and protect the ambilateral profits.Thirdly, the affections of the TOU power price strategies for reducing the network loss, adjusting node voltage, improving load curve of power system, and protecting the consumers' benefits in electricity market are analyzed with applications of a city real time load data of Jiangsu province.

针对"厂网分开，竞价上网"的电力市场运营模式，本文主要完成了以下研究工作：1研究了发电商不同的竞价上网策略，利用供给函数均衡方法，建立了发电商的竞价上网策略模型，给出了市场均衡解的具体解法；讨论了不同条件下发电商的竞价策略对市场的影响，并获得了发电商的最优上网竞价策略，明确了竞价上网与峰谷分时电价之间的影响因素；利用电力系统负荷曲线，建立了发电商最优竞价策略与峰谷分时电价之间的相互联系，通过仿真算例分析了峰谷分时电价与发电商最优报价之间的相互影响。2提出了"厂网分开，竞价上网"电力市场模式下，考虑发电侧竞价和用户侧博弈等风险因素影响，峰谷分时电价理论建模在规避电网企业运营风险，保护供电方与用户双方的利益、确定用户响应曲线、划分峰谷时段、设置合理的电价拉开比等方面所应遵循的基本原则，在此基础上建立了适合电力市场模式的峰谷分时电价模型。3从原理上分析了需求侧实行峰谷分时电价策略，对削峰填谷，提高负荷率，改善负荷曲线形状，降低电力系统的电能损耗和电压损耗等方面的影响，并进行了仿真验证。

Therefore, the Bier block is recommended where postoperative surgical pain is apt to be minimal.

因此，Bier block推荐用于术后疼痛较小的手术。

Because the derivation of the extended system has a block lower triangular form, the method of splitting iteration is applied to compute simple bifurcation point, not only computational work is reduced, but also local quadratic convergence is achieved.

由于所构造的扩充系统的导数具有分块下三角形式，采用分块迭代的方法进行数值求解，不仅减少了计算量，而且是二次收敛的，从而为Navier-Stokes方程非退化简单分歧点的数值逼近提供了有效的算法。

A block that can be opened to receive the bight of a rope.

打开后能够获得绳的曲线的滑轮。

In an LS3PR net, it is verified that there exists a bijective mapping froma strongly connected block of its resource digraph into a strict minimal siphon. In anS3PR net, it is verified that there exists a bijective mapping from a strongly connectedcontributing subdigraph of its contributing resource digraph into a strict minimal siphonin it.

结合Petri网理论和图论，分别给出了LS3PR和S3PR网的资源有向图的概念，分别证明了在资源有向图和有效资源有向图中的强连通块对应LS3PR和S3PR网中的一个严格极小信标的结论。

Objective The aim was to investgate the condition of non-fixed population in area of bilharziasis-spread-block,detect and treat bilharziasis from epidemic area of infectious disease and consolidate the basic achievement.

目的了解和掌握血吸虫病传播阻断地区流动人员情况，及时发现和治疗来自疫区的血吸虫病人，巩固本地成果。

Keywords: dynamic binary translation;optimization technology;overlapped redundancy of basic block

该文从优化动态二进制翻译角度出发，检测、消除由基本块重叠冗余带来的开销。

The 40Ar-39Ar dating of hornblende and biotite from four granitoid intrusives in the southern margin of the North China Block was made in the paper.

对华北地块南缘4个中生代花岗质岩体中的角闪石和黑云母进行了40Ar-39Ar定年研究。

Purified Grp78/Bip was used to block the attachment of p239 to host cells.

目的 探讨Grp78／Bip在戊型肝炎病毒衣壳蛋白进入宿主细胞过程中的作用。

This immediately brings us to the next part of this article: creating an output "replace function".

下面进入文章的第二部分：建立一个"缓存处理函数"。

He was elected as an International Ornithological Committee member in 2002 during the 24th IOC held in Beijing.

现为中国鸟类学会理事和WPA 专家组成员。2002年被推选为国际鸟类委员会委员。