According to the relation between hydrodynamic pressure fields causing by ship and its speed is close, the ship itself can be defended and pass the pressure mine district safely by limit the speed.

根据舰船水压场与航速关系密切的特点，可通过限速航行以实现舰船自身防护安全通过水压水雷区。

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Pressure mounted Monday to launch a search for 29 men trapped in a New Zealand coal mine for three days since a gas explosion, but the mine remained too dangerous to enter.

到周一为止，自新西兰煤矿毒气爆炸已经过去三天，关于营救被困29名矿工的舆论压力不断增加，但由于矿井内毒气太重而无法施救。

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In recent weeks, the floors in that part of the mine had been "heaving, " or buckling up, from intense pressure, said the source, who has intimate knowledge of the conditions in the mine.

CNN: Camera lowered into mine cavity shows 'survivable space'

Due to this almost-complete dependence on foreign sources, Molycorp is now looking to reopen its Mountain Pass mine in California and there is growing pressure on Congress to authorize the much-needed stockpiling of strategic minerals.

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An increase in copper demand places pressure on the supply side, which continues to experience shortfalls in mine output versus forecasts.

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