It is necessary that drilling vessel is capable of standing still under the action of ocean current wave surge tropical storm and internal wave current in winter.

在冬季的洋流、涌浪以及热带风暴和内波流作用下钻井船有能力保持位置不动是很有必要的。

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The results show that there exists a density window for lower hybrid wave current drive (LHCD), i. e, LHCD would be achieved only within a certain range of plasma density.

结果表明，存在着驱动电流的密度窗口，即仅在一定的等离子体密度范围内才能驱动电流(通常在理论和实验上仅注意到驱动电流的密度上限)。

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Based on the double factors linearization concept proposed by authors, the drag force acting on inclined cylinder in wave-current field has been linearized.

根据作者提出的双参数线性化概念，对波流共同作用下倾斜杆件上的波浪拖曳力作了等效线性化。

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"Constantly we are monitoring weather forecasts to keep in line with the sun, plotting our route, examining wind, wave and current predictions, communicating with other vessels on the satellite phone, updating our blog and logging our positions, " he said.

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