1、

Study on the Performance and the Modification Mechanism of the Alkalized Acid-polymeric Mortar

酸性聚合物碱化的砂浆性能和机理研究

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2、

The conclusion is as follows: 1. Aggregate grading and sand cement ratio have obviously influence on the strength. And the consideration should involve strength, construction operation and economy.

集料级配和砂胶比对强度存在显著的影响,应综合考虑强度、施工操作性和经济性加以选择。

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3、

In the trial range, the effect of sand percentage and coarse aggregate gradation on the strength of concrete is not significant. And they could be certained by the pumpability and other technical indicators.

在试验选定的研究范围内,砂率和粗骨料级配则对混凝土的强度影响不显著,可根据混凝土可泵性等其它技术指标确定其合理取值范围。

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4、

According to the analyses of forming causation of air bladder and sand grain at concrete surface of railroad bridge, this paper studies it from five aspects of bridge prefabricate craftwork, and puts forward relevant prevention technique measure.

通过对铁路桥梁混凝土表面气泡和砂纹形成原因的分析,从桥梁预制工艺5个方面进行试验研究,并提出了相应的防治技术措施。

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5、

Prevention Measure Of Air Bladder And Sand Grain At Concrete Surface Of Railroad Bridge

铁路桥梁混凝土表面气泡和砂纹的防治措施

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6、

The reasons of air inflow less than water outflow are hysteresis phenomenon exiting in unsaturated flow, and air expands and diffuses as soon as it entering sand.

造成进气流量小于出水流量的原因主要是在非饱和流中存在滞后现象和进入砂层后的空气体积膨胀和扩散。

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7、

The utility model relates to a pneumatic injection pump, comprising a cover board, a vessel, an air inlet, compressed air, mortar and a grout outlet.

气压式注浆泵主要由盖板、容器、进气口、压缩空气、砂浆和出浆口组成。

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8、

Trial Drilling Results of YKS-30 Model Air Counter Circulation Placer Drill

YKS&30型空气反循环砂钻的初步试验获得可喜进展

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9、

Air act tool Air act whip Granule Product transportation Woodworker equipment;

气动工具、气动搅拌、喷砂、颗粒、产品输送、木工设备;

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10、
11、

According to the relation between the changes of the characteristics of the Acoustic Emission and stress condition, the sandstone and granite samples fracturing process both can be divided into three stages: the early loading stage, the medium loading stage and the late loading stage.

将砂岩和花岗岩样本的压裂过程和各自的声发射信号的规律的变化结合起来可以分为三个阶段,即加载初期阶段、加载中期阶段和加载后期阶段。并且它们具有各自不同的特征。

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12、

By using the alcohol blast burner a simple and fast method for analyzing tin ore was developed to take the place of the conventional high temperature furnace.

用酒精喷灯替传统的高温炉,体现了快速简易,并对多种易熔剂进行了对比,提出了一种对锡矿砂可行的测试方法。

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13、

ⅱ: Al-though the indexes such as granularity constituent, internal angle of friction and condensed force, and ere, can be measured as sand soil, there still exists an essential difference.

尽管象砂土那样可以测定其粒度成分、内摩擦角和凝聚力等指标,但有着本质上的区别;

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14、

The first part of the alimentary canal of an arthropod or annelid, which includes the buccal cavity, esophagus, crop, and gizzard.

前肠节肢动物或环节动物的消化道的第一部分,包括口腔、食管、嗉囊和砂囊。

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15、

Carbonates are the most abundant cements in the Palaeogene sandstones of Lishui Sag, East China Sea basin, which mainly consist of ankerite and calcite and have distinctive stratigraphic distribution and geometry.

碳酸盐胶结物是东海盆地丽水凹陷古近系储层砂岩中最为重要的自生矿物,主要类型为铁白云石和方解石。

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16、

Adhesion Mechanism of Animal Glue and Quartz Sand Used in Casting Process

铸造用动物胶与石英砂粘接机理研究

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17、

The content of calcite cements varies from 4.0% to 16.0% in different strata, locally the content of anhydrite cement may be up to 11.5%~ 28.0%, and thus becomes the primary factor affecting the reservoir quality.

不同层段砂岩中的方解石胶结物含量为4.0%~16.0%,局部地区硬石膏胶结物含量可达11.5%~28.0%,成为影响储集性能的主要因素。

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18、

A relationship between the energy consumption due to particle breakage, angle of friction, dilatancy, and deviator stress ratio was derived.

对钙质砂的颗粒破碎机理进行分析,给出了关于破碎消耗能量、摩擦角、剪胀与偏应力比的关系式。

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19、

Study on Disinfection of Carborundum Wheel and partical Pollution of Ampule

砂轮的消毒与安瓿药液微粒污染的研究

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20、

Test of water soluble core with alundum as base material in casting aluminium

以电熔刚玉砂为主体材料的水溶性型芯铝合金铸造试验

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