A 2-d numerical model of wave motion in lock approach channel is described, which is soluted by using the method of resultants of 2-d numerical model of unsteady flow and 1-d numerical model.

提出船闸引航道内水面波动的二维数学模型，采用二维非恒定流数学模型和船闸灌泄水一维数学模型联解。

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The old approach was to lock two warring sides in a room until they reached agreement.

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It will then verify that the approach systems can acquire and lock on to the space station and can communicate effectively.

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Captain Steve Borthwick, whose own role was questioned after an ineffective game as a lock and leader, believes a more composed approach is required.

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