The classification strategy and implementing algorithm is given in this paper, and the method's validity is proved by the subject information classification of China oil and gas pipeline.

文中给出了分类策略和实现算法，并以中国石油网油气管道专题信息分类为例验证了方法的有效性。

youdao

Indian and China covet Russia's natural resources, particularly its oil and gas.

印度和中国觊觎俄罗斯的自然资源，尤其是石油和天然气。

youdao

There, islands in the South China Sea, beneath which oil and gas are thought to lie, are subject to several disputes involving China and South-East Asian neighbours.

在那里，海底蕴藏着石油与天然气的南中国海中的岛屿引发了中国与其东南亚邻国之间的争端。

youdao

China is particularly keen to secure supplies of oil and natural gas to fuel its rapidly expanding industries.

VOA: standard.2009.10.13

In February, the heads of China's three state-controlled oil and gas majors -- China National Petroleum Corp (CNPC), Sinopec and China National Offshore Oil Corp (CNOOC) -- met one of Russia's most influential players in the energy sector, Igor Sechin, chief executive of state-owned oil company Rosneft.

CNN: China eyes Arctic options in energy, transport

There, islands in the South China Sea, beneath which oil and gas are thought to lie, are subject to several disputes involving China and South-East Asian neighbours.

ECONOMIST: America reaches a pivot point in Asia

For sector watchers, Nomura likes China telecom service, oil and gas producers and healthcare.

FORBES: China To Trade Sideways In Early 2013, Then Bullish