Valve oil seal, shock absorber oil seal.

全新气门油封，减震油封。

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This point. Has been fully able to determine, the failure was due to move left and right oil solenoid valve solenoid valve oil forward resulting damage.

至此。已完全能够判定，故障是由于左前进油电磁阀和右前进油电磁阀损坏而产生的。

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Open system is the pump suction from the tank, the oil through a variety of control valves, the drive hydraulic actuators, valve oil return back for another fuel tank.

开式系统是指液压泵从油箱吸油，油经各种控制阀后，驱动液压执行元件，回油再经过换向阀回油箱。

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Risk assessments on the next stage, to close off the valve where the oil is coming from, are still being carried out.

BBC: Shell claims progress on North Sea oil leak

Though a program displays panels showing all the critical processes of a real rig (fire and gas detectors, valve status, oil flow from the sea bed and so on), and then responds to the actions of the trainee by altering these displays appropriately, a human operator can intervene at any time if things seem to be going too smoothly.

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Mike Schaffner directs information technology for the Valve and Measurement Group of oil and gas products and services company Cameron in Houston.

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