Company engineers were due to begin pressure tests on the new cap late Tuesday, gradually closing its valves to shut down the flow of oil.

工程师们将于周二晚开始对这种新型防漏罩进行压力测试，并逐渐关闭其阀门以终止漏油。

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But because it now oil and chemical use screw compressor for flow and pressure from the shaft power, high demands, at present basically also rely on imports.

但由于目前石油和化工用螺杆式压缩机对流量、排出压力、轴功率等要求较高，目前基本上还依赖进口。

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Viscosity: viscosity is the crude oil in the flow caused by the internal frictional resistance, crude oil viscosity depends on temperature, pressure, dissolved gas and its chemical composition.

粘度：原油粘度是指原油在流动时所引起的内部摩擦阻力，原油粘度大小取决于温度、压力、溶解气量及其化学组成。

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But one Shell contractor said he still faced pressure to meet production deadlines, which meant somehow dealing with threats to disrupt the flow of oil.

ECONOMIST: A rotten army cannot keep the peace