In 2007, according to Petroleum Intelligence Weekly, 70% of world oil production was controlled by national oil companies.
2007年，根据石油情报周刊，世界70%的石油生产被国有石油公司控制。
Video surveillance system has an abroad application in the area of telecom, bank, traffic, electric power, water conservancy, petroleum, intelligence building.
视频监控系统在电信、银行、交通、电力、水利、石化、智能大厦等诸多领域有着广泛应用。
Video surveillance system has an abroad application in the area of telecom, bank, traffic, electric power, water conservancy, petroleum, intelligence building.
视频监控系统在电信、银行、交通、电力、水利、石化、智能大厦等诸多领域有着广泛应用。
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