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To give the definition of the mass concrete and to concrete\'s cracks together with practical meanings of control ,and give a brief review on the research in the field at home and abroad, at last, methods to control temperature crack of the mass concrete from several aspects such as design measures,concrets material, construction schedules.etc are summed up; To explain the physical mechanics of the concrete and computing methods-Difference Method and Finite Element Method, and illustrate the application of their specific methods repectively;Several temperature factors that can influence the temperature stress of mass concrete baseplate are analyzed. The influence degree of temperature factor can be got through the ANSYS simulation computation the control of temperature can control the temperature stress, consequently control the temperature crack of mass concert baseplate; through the influence of the crack resistance ability of mass concrete baseplate which takes the reinforcement as a part is analyzed. By ANSYS simulation, the best suited volume ratio of reinforcement is found out, at same time the layout of reinforcement with the same volume ratio can also affect the resistance ability of mass concrete baseplate. Sum up of above analysis, anti-crack function of steel bar in early mass concrete baseplate is obvious, so it\'s necessary to consider beneficial effect of construction steel bar in research of temperature control on mass concrete baseplate.

本文先容了大体积混凝土及混凝土裂缝的基本概念，对国内外在这个领域里的研究现状作了扼要叙述，并从结构设计、混凝土材质、施工措施等方面总结了大体积混凝土温度裂缝控制的方法及防止措施；阐述了混凝土的基本物理力学性能，总结了大体积混凝土温度计算的方法——差分法和有限元法，并分别举例说明其具体应用的方法；分析了影响大体积混凝土底板温度应力的几种温度因素，利用ANSYS模拟计算，得出了每种因素的影响程度，通过分析提出了在这几种温度影响因素下如何通过控制温度以达到控制温度应力从而来控制裂缝的具体建议；针对大体积混凝土基础底板中配筋的不同对混凝土底板抗裂能力的影响不同，利用ANSYS进行模拟分析，得出底板中最合适的体积配筋率，同时分析了在相同体积配筋率下钢筋的具体布置对大体积混凝土基础底板抗裂能力的影响，分析表明，配置钢筋对混凝土结构的开裂阻止作用明显，在研究大体积混凝土温度裂缝题目时，要考虑钢筋在其中的有利作用。

Bargain away the equipment no longer in use for a small sum of money.

以低价卖出不再使用的设备。

The sum paid by the new Taiwanese owner is believed to be a record for a Chinese banknote, according to Barnaby Faull of auctioneers Spink, who also says that interest in rare Chinese notes has grown rapidly in recent years.

该币最终由一名台湾人拍得。斯宾客拍卖行的弗尔称，最终金额相信打破了中国的钱币拍卖记录。他还说，人们对中国稀有钱币的兴趣近年来升温很快。

The physical address of the actual memory location is the sum of the offset and the base address values.

实际内存位置的物理地址就是这个基址值与偏移量之和。

In fact, a triangle formed for example, by the northern halves of two meridians and the section of the equator between them, will have two right angles at its base and an arbitrary angle at the top-a sum clearly greater than two right angles.

实际上，比如说，一个由北半球的两条子午线和它们之间的部分赤道组合成的三角形，将有两个直角作为底角，还有一个为任意角度的顶角-很显然它的内角之和比两个直角和要大。

The sum of the angle values is calculated from the point of emission for each side of the Base Vector value (0 - 360 is a full circle).

这个角度值是到"发射椎体"一个边的角度，以某个发射点基础向量为标准，两边的角度相加是角度值的总和。

The salary of most sellors is the sum of the basic wage and a percentage of commission.

大多数销售人员的工作报酬是基本工资外加一个百分比提成。

Entries from non-EU countries are to be accompanied by a proforma invoice for a nominal sum, indicating "Contest material-no commercial value".

作品从非欧盟国家都将伴随着骗人的骗人面值金额，显示"竞赛材料-无商业价值"。

Offers of technical alternatives shall be accompanied by all information necessary for a complete evaluation, including design calculations, drawings, method statements and specifications for materials and workmanship where the alternative is not covered by the Specification, together with a breakdown of the alternative prices and the Total Alternative Contract Sum.

供选择的技术方案应伴有供全面评价的必要信息，包括设计计算、图纸、方法及原技术规范中未涉及的材料、工艺的规格，以及供选择方案的标价细目表和供选择方案的合同价格。

3 Offers of technical alternatives shall be accompanied by all information necessary for a complete evaluation, including design calculations, drawings, method statements a'nd specifications for materials a'nd workmanship where the alternative is not covered by the Specification, together with a breakdown of the alternative prices a'nd the Total Alternative Contract Sum.

供选择的技术方案应伴有供全面评价的必要信息，包括设计计算、图纸、方法及原技术规范中未涉及的材料、工艺的规格，以及供选择方案的标价细目表和供选择方案的合同价格。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐