Reasons for corrosion were analyzed. It is suggested that aqueous alkali and liquid brushing are the main factors for erosion of metal material. Aimed at...

分析腐蚀原因，认为冲刷和碱性溶液对金属材质侵蚀性腐蚀是主要因素，进而制定相应的防腐措施。

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According to the analysis of the applied forces on the molten poor at arc root the theoretical function in which the arc erosion of metal droplet ejection can be characterized was founded.

根据旋弧弧根处熔化液池的受力分析，在理论上建立了能描述旋弧喷溅侵蚀特性的函数关系式。此理论关系表明，在无外磁场作用下，液池中心受力最大，将形成中心喷溅；

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Based on data review, the corrosion and erosion of metal drilling tools in under-balanced drilling are analyzed, including affecting factors, composition and application of corrosion inhibitors.

在对文献调研的基础上，综述了国内外在欠平衡钻井中对金属钻具的腐蚀与磨蚀方面所做的工作，主要包括各种影响因素的分析、相应防腐剂的组成和应用。

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Such concentrations are usually created by geological events, such as volcanic eruptions and tectonic plate shifts that steer hot metal-bearing fluids into upper, accessible parts of the Earth's crust, erosion, or massive sedimentary movements.

WSJ: Exhausting the Earth's Resources? Not So Fast