The American reason of Chinese oil security is the new task of this field.

中国石油安全中的美国因素是这一领域中的新课题。

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This article holds that the oil security evaluation index system is foundation.

本文认为，构建石油安全评价指标体系是评价工作的基础。

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Itis necessary to study oil security and find the measures to copy with oil crisis.

因此研究我国的石油安全问题，找出应对石油危机、保障石油供应的措施很有必要。

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Western intelligence officials have reportedly urged each country to boost security measures and to provide better protection for ships,especially oil and gas tankers.

VOA: standard.2010.01.07

Security analysts say the oil industry remains vulnerable to opportunistic attacks, crude oil thefts and kidnappings.

VOA: standard.2009.12.21

That would be especially true Smith believes, in the Arab Gulf states, where the U.S.for decades has ensured the security of the world's largest oil reserves.

VOA: standard.2010.03.18

All this will require China and the US to develop a more explicit understanding and a framework for collaboration on oil security.

FORBES: U.S. Energy Independence: A Small Sanity Check

Last month, the Energy Security Leadership Council detailed an oil security plan to improve the U.S. economy, promote fiscal stability, and protect national security.

FORBES: Energy Security - How To Avoid The Looming Crisis

Tensions over oil and security brought the two sides to the brink of war last April.

BBC: Sudanese leaders Bashir and Kiir commit to buffer zone