reducing surface

The paper describes the O. D. and wall-thickness tolerances and internal/ external surface quality of midium and heavy wall steel pipes produced in Hengyang Steel Pipe Factory by means of φ 108mm three-roll mill complete with a 12-stand slight-stretch reducing mill.

介绍了衡阳钢管厂φ108mm三辊轧管机组配置12架微张力减径机生产中厚壁钢管的外径精度、壁厚精度及内外表面质量情况。

Platform AI has made a great progress in the aspects of loose surface layer detecting, hole trajectory control, raising well-drilling effeciency by new technology, reducing costs etc.

AI平台在疏松表层造斜，井眼轨迹控制，应用钻井新工艺、新技术提高钻井效率，降低昂贵的海上钻井成本等方面，取得了长足进步。

When road surface status and car running performance beyond the design qualification, fixed damp characteristic of passive system's reducing shake's effect will be reduced.

当路面状况和车辆运行状态超出设计条件时，固定阻尼特性的被动悬架系统的减振效果将大为降低。

The machining surface roughness of ZA22/ Al 2O 3 f composites is studied in this paper. The results show that the reasonable selection of machining parameters is the important measure of improving machined surface quality and reducing surface roughness.

通过对ZA22／Al2O3f复合材料机械加工表面粗糙度的研究，得知合理选择切削参数是提高加工表面质量、降低表面粗糙度的重要手段。

Oil-based lubes break down the surface of condoms, reducing their effectiveness.

油性润滑剂损害安全套的表层, 降低了安全套的效用.

The adding of fluorocarbon hydrophobe can increase coating surface's hydrophobicity greatly, reducing its water absorption and increasing its contact angle.

通过引入氟碳基团可以极大地提高涂膜表面的疏水性，降低涂膜的吸水率，提高涂膜接触角；

Objective The reconstituted pulmonary surfactant ( SP) is composed of synthetic lipid ( SL) and surfactant-associated protein C ( SP-C). The purpose of this study was to determine the surface tension reducing activity of the reconstituted surfactant containing different concentrations of SP-C.

目的探讨不同浓度的肺表面活性物质（PS）相关蛋白C（SP-C）与合成脂质构成的重组PS活性的变化。

The results show that air entraining admixture and shrinkage-reducing admixture can decrease surface tension of water and Ca ( OH) 2 solution observably. Water-reducing admixture can reduce surface tension of water but has no notable effects on surface tension of saturation calcium hydroxide solution.

研究表明，引气剂、减缩剂可以大幅降低水及饱和Ca（OH）2溶液的表面张力，减水剂可以降低水的表面张力，但在饱和石灰水中表面活性碱弱。

The connecting wire is directly fixed on a surface of a bearing object, thereby reducing reflecting loss of incident sunlight, simplifying mounting process and reducing mounting case.

再用套管连杆、人字支架和连接线将若干个单位电池板组合集成，并由连接线直接固定在承载物体表面。

It was also testified that the weigh of the water coagulated on the cold surface was not changed when the coat was brushed on the surface so it was through absorbing the water in the air that the coat controls frost growth but not through reducing the coagulated water;

通过实验还证明了这种涂层并没有减少冷壁面上水量的凝结，而是靠其吸收了凝结在壁面上的水分起到了抑霜的作用；