查询词典 sand blaster

For most of the new explorative lays are between 2000m and 3500m, and the geologic structure is complex, So there are many field problems for fracturing string, such as low packer pressurization ; leaking off of hydraulic anchor; serious erosion of the inwall for pressure transmitting sand blaster.

但由于新探明层位大都在2000米到3500米之间，地质构造复杂。现场施工中压裂管柱出现了诸如封隔器承压指标低；水力锚锚爪漏液；导压喷砂器内壁磨蚀严重等问题。

This research wants to understand for slag additament to restrain of ocean-sand concrete shall be getting worse. To separate river-sand and ocean-sand made fine aggregate, by means of slag additament be able to substitute for cement 20%~40%, and be able to set W/C=0.385、0.485 and 0.585 to make compressive、tensile and bending motor test sample, and shall be curing 3、7、28 and 56 days to search for relation of slag be able to substitute for cement、W/C、curing time and strength.

本研究为了解炉石抑制海砂混凝土材料恶化之效应，乃分别以河砂及海砂做为细骨材，以炉石替代水泥量，分别为20%~80%，并设定水灰比为0.385、0.485及0.585制作抗压、抗拉及抗弯水泥砂浆试体，并养治3天、7天、28天及56天探讨其炉石替代量、水灰比、养治龄期与强度间的关系。

Generally, the benthal deposited materials near the coast are mainly medium-fine sand, gradually becoming silty sand, sand-silt-clay, clayey silt, and silty clay.

总的来看，港区近岸沉积物以中细砂为主，向海逐渐过渡为极细砂、粉砂质砂、砂-粉砂-泥、泥质粉砂和粉砂质泥。

This paper illustrates the development of technique of sand production mechanism and prediction of sand production amount in weak cementation sand stone reservoir.

对弱胶结砂岩油藏出砂机理和出砂量预测技术的研究进展进行了综合论述。

If we say that a sand can reflect a world, it doesn't mean that the sand contains a world but it is the discoverable eyes that entrusted the sand to a bran-new world.

如果说一颗沙子可以看出一个世界，那么绝不是因为沙子中包含了世界，而是发现的眼睛赋予了沙子一个全新的感观世界。

On the plane, deposits mainly distribute on the sides of the depression, especially submarine sand body of downthrow block of Tugege fault and Hule fault and sand body inside the depression. Generally these sand bodies are of big area and thickness. They are also favorable objectives for further exploration.

在平面展布上，凹陷边部分布相对较多，特别是控凹断层--图拉格格断层下降盘和虎勒断层下降盘水下扇砂体、凹陷内部的长物源砂体，这些砂体一般具有面积较大、厚度可观的规模和特点，是下步勘探的较好目标。

It mainly specializes in researching and developing large and medium type dredging machine. At present it's leading products include sand dredging boat, sand drawing boat and iron sand boat. They are sold well in three provinces in northern China, Henan, Hebei, Shandong, Shanxi, Gansu, Shanxi, Zhejiang, Szechwan, Anhui, Inner Mongolia and Hubei about over ten cities.

目前所生产的系列挖沙船，系列抽沙船，系列铁沙船等产品畅销于东北三省、河南、河北、山东、山西、甘肃、陕西、浙江、四川、安徽、内蒙、湖北等十几个省市，深得用户好评，并出口尼日利亚、孟加拉、也门、南韩等国家。

Based on the analysis of the process of sand reclamation by way of centrifugal friction,the dynamic calculation on sand movement is made,and the system of sand reclamation by friction with the help of striking is presented.

在分析离心摩擦式旧砂再生过程的基础上，对砂子的运动作了动力学计算，得出了以摩擦为主、撞击为辅的再生产方式的结论。

Zhejiang Xiang abrasive hair Ltd. are engaged in domestic and imported Burkina, paper-based ring belt and a variety of special-shaped abrasive polishing a professional manufacturer of abrasive belt has a full set of advanced production equipment, a high level of professional and technical personnel, and products are mainly Has belt, sand volume, page rotation, sand disk, sandpaper, emery cloth, sand sets, grinding wheel and so on.

浙江祥发研磨有限公司是从事国产及进口布基、纸基环形砂带和各种异型抛光磨具的专业生产厂家，拥有全套先进的砂带生产设备，高水平的专业技术人员，产品主要有砂带、砂卷、页轮、砂盘、砂纸、砂布、砂套、研磨轮等。

However, the company continuously suffered from the non-profitable operation, which troubled Mr. Robert Fitzsimmons. Due to the high cost on oil sand productions and limited financing available, the company often failed to cover its end needs, which led to its bankruptcy by the end of 1930s. In 1948, Bitumount plant was received by the government, and became a dedicated oil sand test base. Large-scale facilities were equipped, thus expanded the scale of oil sand experiments on oil extraction. By 1949, the plant reached a production capacity of 450 tons per day!

但是公司惨淡的经营状况却一直是困扰Robert Fitzsimmons的问题，由于当时的油砂开发成本太高，资金来源又非常有限，公司的财务状况经常是入不敷出，终于导致公司在30年代末破产。1948年，Bitumount的工厂被政府接管，作为专门的油砂实验基地，并为之添置了大型的设备，将油砂的开发和萃取实验规模扩大。1949年工厂的生产能力已经达到日处理油砂450吨！

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。