For bow hard grounding, damage path will go toward the side of ship hull, and the contact between the ship and the rock will change gradually from intense impact to lateral press and slip friction.

对于船艏高能搁浅的情况，损伤路径会向船体外侧偏离，船舶与礁石之间的接触由剧烈的冲击逐渐过度到侧向挤压和滑动摩擦；

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To indicate the borderline between hard and soft rock behavior, a simple, convenient and feasible method is presented with judgement by the stability of mudstone in water.

文章以泥岩的水稳定性做为划分标准对泥岩的岩土界线进行了划分，并设计了一些试验方法及提出了试验的基本准则。

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In political terms, President Obama may soon find himself between a rock and a hard place when it comes to the future of U.S.

VOA: standard.2009.09.28

The bill, which began its parliamentary journey this week, has been rejected outright by Italy's biggest trade-union federation, the CGIL. That stance has put the leaders of the centre-left Democratic Party (PD) between the rock of their historic ties to organised labour and the hard place of support for the government.

ECONOMIST: Italian politics: Jittery Italy | The

"The Bank remains between a rock and a hard place in trying to strike a balance between the rising pressures of inflation and supporting the economic recovery, " he said.

BBC: Inflation to stay above target, says Bank of England

With projected federal spending topping 34 percent of GDP and the known politically acceptable levels of federal tax revenues falling below 20 percent of GDP, we are between the proverbial rock and a hard place.

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