The results show that the variation in elevation angle of roof beam can be controlled by the equilibrium jack in moving support and the stress at different parts can be adjusted according to the variation of the support load in coal caving process, greatly improving the adaptability of the 2-leg shield support in top-coal caving working face.

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This research reveals that dynamic action is the root reason for soil water erosion, and that law of conservation of mass and energy is the basic principle of soil erosion, and that the coexistence of erosion and sediment is a universal rule of soilwater erosion.

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The precision of the description of the conformational equilibriums of force field is very important for molecular simulation.

力場對多肽構(gòu)象平衡的刻劃精度對分子模擬非常重要。

They are differentiated twice with approximate ideal differentiators to obtain the corrected accelerogram.

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The parametrically excited and forcedly-parametrically excited equations of ship rolling in longitudinal and oblique seas are established.

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All this extra force on your inner ear can make you lose your balance and feel quite dizzy.

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Reformulates our country civil retrial system, we may do following several aspects:We should overcome the absolute wrong tendencies guiding ideology which is" right wrongs by seeking truth from facts," Reaffirm civil purposes, ensure the exercise of the right of the parties, establish and maintain effective balance between correcting mistakes judgment and stability、 authority, achieve the balance of relief to flaw judgment and res judicata, coordinate social justice and order, which should be new guiding ideas of civil retrial system.

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