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The cooling rate is faster in chromite sand mold, but also causes more porosity in castings.

铬砂制作的砂模可让铸件有较快的冷却速率，但也产生较多的微孔隙。

The compose, producing technology,properties and application example of new water-based and alcohol-based chromite powder compound coatings for steel castings are introduced in this paper.

本文介绍了新型铬铁矿粉水基和醇基铸钢复合涂料的组成结构，生产工艺，性能特点和应用实

The rw castings are from Coles Power Models in California and the engine has a functional steam boiler .

该铸件RW光碟是从科尔斯的权力模式，在加利福尼亚州和发动机有一个功能蒸汽锅炉。

Developed for the aluminum alloy castings, offering excellent collapsibility.

是为轻铝合金铸造所开发的溃散性极好的树脂。

Company is mainly engaged in automotive, internal combustion engine, engineering machinery, refrigeration compressor, high precision machine castings of gray iron and ductile iron casting and machining.

公司主要从事汽车、内燃机、工程机械、制冷压缩机、缝纫机等高精密铸件的灰铁和球铁铸造与机械加工。

Confident in his castings now, and did not need his ceremonial conjuration robes for luck.

卡德加用紫水晶和蔷薇石英摆出魔法阵，画魔法阵的内纹的时候他有些喜形于色。

My most recent castings address the way creative forces in nature shape material; comparing time and material.

我最近的作品展示了大自然中创造性力量塑造物质的方式，将时间和物质进行对比。

The products mainly are quality engine castings produced in DFM No.1 Foundry for international famous companys like cylinder block.

产品：生产与国际知名公司配套的各种材质的具有国际水准的发动机铸件。

The four conditions are as follows: the molten alloy only with the addition of deoxidant during melting; only applying high-density pulse electric current on castings during solidification; compound addition of grain refiner and sodium modifier, and addition of borax r modifier liquid along with applying pulse electric current during melting.

这4种工艺条件分别为：在合金液熔炼过程中，除了加脱氧剂外不做任何处理；凝固过程中单独施加高密度电脉冲；添加晶粒细化剂和钠盐变质剂混合剂，或者添加硼砂变质细化剂，并施加高密度电脉冲。

" High Copper, Low Zinc Brass Castings for Dezincification Resistance"

锌含量低的高纯度的铜铸件，有效防止锌泄漏

The United Kingdom has pledged to provide technical assistance to the peacekeeping effort in Darfur, including airlifting supplies and equipment to assist the African peacekeepers.

英国承诺为达佛的維和努力提供技术帮助，包括提供非洲的維和部队空运补給和裝备。

Results: The level of ET-1mRNA in placental villus was significantly higher in pre-eclamptic women than that in control group.

结果：妊高征组患者胎盘绒毛组织ET-1 mRNA的表达较正常妊娠组明显增高。