以下为句子列表：
英文: Abstract: Addressing the problems encountered in localizing oil well tubing production, the co authors analyze the influences by aspects, namely, product quality, product R ＆ D, operation, technical level of equipment and competition in this specific ind
中文: 文摘:针对油井管国产化遇到的问题，分析论述了产品质量、品种开发、使用操作、装备技术及行业竞争的影响，指出了加强油井管国产化的必要性以及阻碍当前发展的原因。
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英文: An oil well blew out in the North Sea.
中文: 北海的一口油井发生了井喷。
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英文: An oil well blew out in the oil field.
中文: 油田里有一口油井发生井喷。
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英文: Because the oil well pump belongs to a simplex reciprocating pump, the most authentic Adolph's differentical equation of movement of the reciprocating pump valve can be used to reserch the movement of oil well pump valve,but it is well known that this dif
中文: 由于抽油泵属于单缸单作用往复泵，因此可以将目前较权威的阿道尔夫往复泵泵阀运动微分方程用于研究抽油泵泵阀的运动规律，但阿道尔夫泵阀运动微分方程在泵阀开启初期存在奇点问题。
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英文: Company is specializes in the development, manufacture and trade of both home and abroad of novel oil well cementing materials and oil and gas field land equipment.
中文: 主要从事油田固井新材料、油气田地面技术设备的科研、生产和国内外销售贸易工作。
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