1、

Pollution and corrosion of facing stone materials during processing and operating will result in disease and shortened service time.

饰面石材在加工和使用过程中,会受到多种污染和腐蚀产生病害,使寿命缩短。

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2、

The cavitation phenomenon exists widely in many domains with liquid transporting process. The occurrence of cavitation will decrease the performance of conveying machinery and cause cavitation erosion, lead to additional vibration. The uncontrollable cavitation will cause serious or even disastrous consequences.

空化现象普遍存在于诸多领域内液体输送过程中,空化的发生会造成输送机械性能的下降,产生空蚀破坏,引起机组振动加剧,无法控制的空化会产生严重的甚至是灾难性的后果。

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3、

Present study shows that addition a small amount of A1, Ni, etc, to the Cu-Zn alloy for condenser tules enhances the combined corrosion resistance markedly, These new alloys can be used in maritime power-station or for cooling water of unfavorable quality.

结果表明,在铜锌合金中,加入少量的铝和镍,可较明显地提高原合金的综合耐腐蚀性能,能在沿海电站、或不良的淡水水质条件下使用。

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4、

Breakthrough progress in research of pipeline bacterial corrosion getting in America

管道细菌腐蚀研究在美获突破性进展

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5、

Bacterial corrosion mechanism in drinking water pipelines

给水管道细菌腐蚀机理

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6、

The identified mechanisms of bacterial corrosion are essentially important physico-chemical modifications of the medium in contact with the material.

生物腐蚀的机理对金属接触的介质物化调整来讲是非常重要的。

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7、

The environmental difference between city gas pipeline and long distance gas pipeline is compared, the limitations of current methods for measuring the soil resistance rate, and the possibility of judging bacterial corrosion are analyzed, and some appropriate improvement measures are put forward.

比较了城镇燃气输配管道与长输管道的周边环境的差别,分析了现行的测取土壤电阻率和判断细菌腐蚀可能性的方法的局限性,提出了相应的改进措施。

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8、

Analysis on balling up caused by helicoid hydraulic motor bypass valve failure in combined drilling technology EXPERIMENTAL STUDY OF ABRASIVE-CORROSIVE WEAR OF MUD PUMP LINER

复合钻井过程中螺杆钻具旁通阀刺漏造成钻头泥包分析钻井泵缸套材料磨料&腐蚀磨损实验研究

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9、

A New Type of Corrosive Wear Test Device and Its Performance Study

一种新型腐蚀磨损实验装置及其性能研究

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10、

Effect of Impact Power on Corrosive Wear of Medium Carbon Alloy Steel

不同冲击功对中碳合金钢腐蚀磨损的影响

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11、

A preliminary study of the effect of additives on corrosive wear of 1045 steel

腐蚀磨损中添加剂的作用机理初探

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12、

Comparative Study on Corrosive Wear of white Cast Iron

白口铸铁砂蚀磨损性的对比研究

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13、

Inhibition effect of sodium barbital on aluminium alloy in 3.5% nacl solution

巴比妥钠对铝合金在NaCl溶液中缓蚀作用的研究

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14、

Barium hydroxide whose content is less than 1.0% replacement of cement by mass can suppress the sulfate attack damage for concrete.

其中,掺量小于1.0%的氢氧化钡能改善混凝土的抗硫酸盐侵蚀性能。

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15、

In addition, the extensive farming of traditional agriculture leads to soil erosion and desertification, seriously restricting the local economic development.

同时,传统农业耕作粗放,加之过去滥垦滥伐,过度放牧,水土流失和土壤风蚀沙化加剧,严重制约着当地经济的发展。

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16、

Based on the analysis, corresponding measures including retarding plate corrosion, improving scraper, fastening stand fire main, adding rust-resisting valve and auto-sewerage are introduced in detail.

提出了延缓罐底板腐蚀、改造刮板、固定消防立管、增设除渣阀、安装自动排水装置等具体改进措施。

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17、

Study on Corrosion Cracking of Bellows Expansion Joint Made of Stainless Steel

对真空制盐车间不锈钢膨胀节热影响区腐蚀裂纹的探讨

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18、

Higher self biasing voltage increases ion bombardment energy and densities of oxygen atoms/ ions, which is a key factor for etching.

基底直流自偏压的提高能增强离子轰击效应和增加氧原子/氧离子密度,因而是决定刻蚀速率的一个关键因素。

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19、

Research on Oilwell Cement Corrosion by Chloride Ion and Bicarbonate Ion Versus

氯离子与碳酸氢根离子对油井水泥的腐蚀研究

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20、

Freeze Fracture Etching Study of Tight Junctions in Bile Canaliculus

毛胆管紧密连接的冷冻蚀刻研究

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