"But you need an oil price that makes that worthwhile. Unless you can generate sufficient money to justify that, it's very difficult to see the industry coming back."
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The rocket was carried by a huge machine called a crawler-transporter, travelling at a top speed of 0.82 mph (1.3 km/h) as it trundled along. Live coverage captured the slow-moving spectacle.
// Hundreds of components = hundreds of enqueue calls。91视频对此有专业解读
Andrew Robinson reviews five of the best science picks.