... petroleum expansion 石油加热膨胀 petroleum extraction 石油开采 petroleum feeder 石油喷射器 ...
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Petroleum Extraction Equipment 石油钻采专用设备制造
recovery petroleum extraction of oil 开采石油
petroleum extraction project 石油钻采工程
Petroleum extraction enterprise 石油开采企业
drill and petroleum extraction tools 钻采工具
Petroleum ether extraction 石油醚提取 ; 石油醚 ; 石油醚提取物
Extraction of Petroleum and 石油和天然气开采业 ; 石油和天然气
petroleum and gas extraction 石油和天然气的开采
β-mannanase which is a kind of endo-hydrolases,belonging to hemiccllulases could catalyze the hydrolysis of theβ-I,4-D-glycosidic linkages,which had been found applications in food,medicine,papermaking,textile printing,petroleum extraction and biological technology and so on.
β-甘露聚糖酶是一类能够水解含β-1,4-D-甘露糖苷键的内切水解酶,属于半纤维素酶类,在食品、医药、造纸、纺织印染、石油开采及生物技术等多方面得到了广泛运用。
参考来源 - 枯草芽孢杆菌WD23β·2,447,543篇论文数据，部分数据来源于NoteExpress
The invention relates to a petroleum extraction technology, aiming at a strong sensitivity oil layer water injection well.
本发明是针对强敏感油层注水井的石油开采技术。
Mining of copper, cobalt, diamonds, gold, zinc and other metals, as well as petroleum extraction, once accounted for 75 percent of its GDP.
铜、钴、钻石、黄金、锌和其它资源的开采，以及石油开采，曾经占其GDP的75%。
The principle is advance capability and credibility function and safety operation in the design of the drill and petroleum extraction tools.
钻采工具试验井的设计中体现了“性能先进、运行可靠、操作安全和维护便捷”的原则。
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