查询词典 cement

AbstractObjectives1 Correlate bone mineral densityto vertebral compressive strengths.2 Consummate the technique for percutaneous polymethylmethacrylate vertebroplasty and observe the pattern of PMMA imaging distribution.3 Determine the strength and stiffness of osteoporotic with or without vertebroplasty with PMMA bone cement.4 Correlation of BMD,insertion torque and pull-out strengths of pedicle screws.5 Ascertain whether augmentation with PMMA bone cement can enhance pedicle screw fixation in the osteoporotic spine.6 Ascertain whether augmentation pedicle screw fixation with PMMA bone cement can enhance the stability of unstable thoracolurner burst fractures of osteoporotic spine.

目 的1、测试椎体压缩强度，分析强度与骨矿物质密度（bone mineral density，BMD）的相关关系。2、观察经皮椎体成形术后聚甲基丙烯酸甲脂（polymethylme- thacrylate，PMMA）骨水泥在椎体内的形态学分布及影像学表现。3、比较PMMA骨水泥骨质疏松椎体成形术前/后椎体最大抗压力和压缩刚度的变化。4、分析椎体BMD、螺钉最大旅入力矩和最大拔出力三者之间的关系。5、分析PMMA骨水泥强化骨质疏松椎弓根螺钉后的螺钉的最大轴向拔出力和拔出刚度的变化。6、评价PMMA骨水泥强化骨质疏松椎弓根螺钉脊柱内固定对不稳定型胸腰椎损伤的即刻稳定性和反复载荷后的稳定性。

In order to prevent this kind of pollution, often spreads the organosilicon water-repellent, the polymer cement mortar, the emulsion resin, the epoxy resin etc on the inside surface of the quartz stone , although it can have certain protection effect, but also has the following insufficiency: Uses organosilicon water-repellent processing, the quartz stone material, cement and the mortar cannot form a sealed surface layer, is unable to suppress the hoar frost separation and the rain spot effectively; Uses polymer cement processing, not only material itself includes the hoar frost ingredient, moreover the water permeability is big, the protection effect is also not ideal

为防止这类污染，常在石材内面涂上有机硅防水剂、聚合物水泥砂浆、乳液树脂、环氧树脂等，虽能收到一定的防护效果，但也存在以下不足：采用有机硅防水剂处理，石材与砼、砂浆被贴面不能形成密封层，无法有效抑制白霜析出物和润斑；采用聚合物水泥处理，不仅材料自身含有白霜成分，而且水渗透率大，防护效果也不理想

The cement coagulation earthen road pavement stave compaction technology is a repair major damage cement road surface new technology, can solve the old cement road surface to spread the reflection crack question which the brea bed produces, has the building cost of projects to be low, the construction is convenient, affects the small merit to the transportation, provides the good driving performance for the newly built road surface.

水泥混凝土路面破碎压实技术是修复严重损坏水泥路面的一项新技术，能够解决旧水泥路面加铺沥青层所产生的反射裂缝问题，具有工程造价较低，施工方便，对交通影响小的优点，为新建路面提供良好的行车性能。

In this paper, the main question to be solved is the method of permeability testing of soil cement, and finding the quantitative relation between permeability coefficient and cement content, and the relation between permeability of enforcement soil cement and fiber.

通过对多组水泥土和加筋水泥土试块进行的抗渗试验以及对试验结果的分析，得出下面的结论： 1。

The slump and the time of slump are tested through the method of slump test, and the properties of concrete are calculated and analyzed. The study denotes that for C20 grade concrete, the value of the shear yield stress σ0 and plastic viscosity η is the smallest when the fly ash contains 20% weight of Portland cement; for C60 strength grade concrete, the value of plastic viscosity is the smallest when fly ash contains 20% weight of Portland cement and the value of the shear yield stress σ0 is the smallest when fly ash contains 30% weight of Portland cement.

利用改良坍落度筒的实验方法对坍落度和坍落时间进行测试，并进行相应的计算与分析，实验结果表明：强度等级为C20的混凝土，粉煤灰掺量为20%时粘度和屈服应力值最低；强度等级为C60混凝土，粉煤灰掺量为20%时，其粘度最低，而屈服应力值在粉煤灰掺量为30%时最低。

At present, cement grinding system with roller press, especially combination grinding system have become one of cement grinding preferred schemes in large-scale cement production line.

目前，带辊压机的水泥粉磨系统，特别是挤压联合粉磨系统已成为了大型水泥生产线水泥粉磨的优选方案之一。

Effects of cement quantity, hydration temperature, cement fineness, water cement ratio, gypsum addition, and hydration time on the particle weight of CPA were studied.

通过研究水泥称量、水化温度、水泥细度、水灰比、石膏掺量和水化时间对结粒量的影响，探讨了该检测方法的可行性。

However, development of cement industry will also face disadvantageous factors: 1 along with the coming of high cost epoch, continued rising in costs of coal, power, mineral resources, environment, human resource and capitals and the increase in social responsibilities that enterprises should take on will bring restricting factors to the investment and development of cement industry; 2 on the basis of the gradual increase of industrial concentration, market competition will change from the current competition between large enterprises and small enterprises and between new dry process and backward shaft kiln technology to the competition among large enterprises and among new dry processes, so the extent of market competition may further extend; 3 along with RMB increasing in value, demand decreasing in north America, new production lines in Middle east being put into operation and the persistent high price of international shipping, national cement export will face huge menace; backward flow of export products will certainly aggravate market competition in some areas.

但水泥行业的发展也将面临不利因素。一是随着高成本时代的到来，煤炭、电力、矿产资源、环境、人力、资金等成本的不断提高及企业所承担的社会责任的增加，将对水泥工业的投资和发展平添抑制因素；二是在产业集中度逐步提高的基础上，市场的竞争将由目前大企业与小企业、新型干法与落后立窑工艺之间的竞争转为大企业与大企业、新型干法与新型干法之间的竞争，市场竞争的程度有进一步加大的可能；三是随着人民币的升值、北美市场需求的下降、中东新生产线的投产及国际航运价格的居高不下，我国水泥出口将面临巨大的威胁，出口产品的回流，势必将加剧局部地区的市场竞争。

To make the cement industry, Cement City is implementing the integration plan, great support through the development of large-scale dry cement kiln project, equivalent shaft out, the promotion of enterprise integration, the formation of a unified brand and unified management, unified group of sales development pattern .

为做大水泥工业，武安市正在实施水泥整合计划，通过大力扶持发展大型干法窑水泥项目，等量淘汰机立窑，促进企业整合，形成统一品牌、统一经营、统一销售的集团化发展格局。

Philip Yang Cement Co., Ltd. Yichang Yichang Philip Yang is a Group Co., Ltd. and Yichang East Lake Cement Co., Ltd. jointly set up a strong large-scale private enterprises, the scale of production for the Nissan 2000 tons of cement clinker production line of new dry rotary kiln, the project total investment of 1.8 billion.

宜昌弘洋水泥有限公司是宜昌弘洋集团有限公司与宜昌东湖水泥有限公司强强联合组建的一家大型民营企业，生产规模为日产2000吨水泥熟料新型干法旋窑生产线，项目总投资1.8亿元。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。