The normal supporting principle of rockbolt is improving the balance of stresses of surrounding rock mass.

锚杆支护的一般作用原理是提高围岩各向力的平衡程度。

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The coupling balance supporting principle of inner and outer structures is put forward for these roadways.

分析深井煤层巷道围岩变形特征和支护失效的原因，提出此类巷道的内外结构耦合平衡支护原理。

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The supporting principle of rockbolt under special construction situation is reinforcing the surrounding rock mass.

锚杆支护在特殊条件下的作用原理是对围岩吊挂固定。

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The finance and enterprise committees brought a joint motion on supporting in principle the devolution of corporation tax powers to the Northern Ireland Assembly, on 28 June 2011.

BBC: Devolution of Corporation Tax

It has sought to become influential in the region by supporting the principle of integrating Latin American countries into an autonomous group, independent of the United States or any world power.

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Supporting Lords reform in principle but holding it up in practice might become hard for Ed Miliband, the Labour leader, to explain.

ECONOMIST: Reforming the House of Lords: The coalition��s millstone | The