配

The reproductive glands of male fishes when filled with this fluid.A plant that reproduces by or is reproduced by apomixis.

无配生殖植物，无融合生殖植物可进行无配生殖的植物或由无配生殖产生的植物

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。

In order to improve the reliability and quality of electricity ,this paper studying the algorithm to design the network and distribution transformer number or location based on load forecast base on CIS.The thesis conducts a research on the Geographic Information System and the GIS application on Electric power system .

配网改造优化规划的目的是首先进行负荷预测，在此基础上进行规划设计选择出最优的配变个数、位置和最优的布线结构以提高供电可靠性和电能质量，评判最优的标准为配电网线损最小。

Design and synthesis of chiral phosphorus ligands and the applications of them in catalytic asymmetric reactions has been a hot topic. Researchers betake themselves to develop novel chiral phosphorus ligands to solve problems that the existing ones cannot do.

中文摘要手性膦配体的设计与合成及其在不对称催化中的应用一直是研究的热点领域，研究人员一直致力于开发新型的手性膦配体来解决已有配体不能解决的问题。

The result of drip test (The height is 20 cm) was that the bibulous speed was 4 to 5 seconds.

先用4公升实验室的管道自来水，与40克洛醇配成水溶液，剪一块30 x 50 cm 的布料，以手工操作，30分钟后，再换4公升新配的水溶液，30分钟后，再换4公升新配的水溶液，30分钟后烘乾，经检查，棉子売清除达98%，滴水测试结果是(高度20 cm )吸水速度4 -5秒，白度接近6。

The less expensive places often produce options based on local favourites such as pie and chips or faggot and chips in England and white or black pudding and chips or even fried Mars bars in Scotland.

那些不太贵的餐厅，一般都供应当地非常受欢迎的食品，像英格兰的派配炸薯条，或者肉丸配炸薯条，和苏格兰的白布丁或者黑布丁配炸薯条，还有炸朱古力条。

Carboxylate ligands were widely used in this filed because of their strong coordination ability and various coordination modes.

羧酸配体由于其很强的配位能力和丰富的配位模式，在配合物的合成中被广泛地应用。

The investigation of the catalytic activity and stereoselectivity of ligand 10 was also carried out under another standard set of K〓Fe 〓 conditions (〓/ligand/substrate=0.002: 0.01: 1). The AD reaction of seven olefins gave corresponding diols in 72～99% yield (except for ethyl cinnamate, 48%) and 91～99% ees, which was comparable to those obtained from the reactions using the commercial ligand 〓PHAL.

将单季铵盐手性配体10用于AD反应的另一个催化体系〓BuOH-H〓O/K〓Fe〓中考察其催化活性和立体选择性，在七种烯烃的AD反应中，〓、配体与底物的摩尔比为0.002：0.01：1时，化学产率为72～99％（肉桂酸乙酯除外，为48％），ee值为91～99.9％，与商品配体〓PHAL的催化结果相当。

These methods improved the interpolation byincreasing the smoothness and compact support characters, which improvedthe robustness and applicability of the method.

采用上述新的弹性配准方法，本文对实际的MRI一Man数据进行了弹性配准，实现了良好的、准确的配准，为进一步的工作打下了基础。

Furthermore, the structures of the complexes are strange. The tripodal ligand H〓L〓 form a 2: 2 ring-like binuclear complexes [Eu〓·L〓·6DMF] ·CH〓OH·DMF with Eu〓 in DMF. Two DMF molecules are accommodated in the ring and coordinate with Eu〓.

此外配合物的结构还比较特殊，三足配体H〓L〓与铕的配合物在配位能力较强的溶剂DMF中形成环状的2：2型双核配合物[Eu〓。L〓·6DMF]·CH〓OH·DMF，环状空腔刚好能够把两个配位的DMF溶剂分子包在里面。

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