去年圣诞节我们送史密斯家一瓶杜松子酒，因此今年他们给我们一瓶苏格兰威土忌，算是有来有往。
We gave the Smiths a bottle of gin last Christmas, so this year they gave us a bottle of Scotch Whisky to even thing up a bit.
采用考虑位移的土压力计算方法计算环向土压力，得出首节管道和后续管节最大土体反力的计算公式。
By considering displacement for calculating circular earth pressure, the maximal earth counterforce formulas for the heading and the latter pipelines are deduced.
小型混凝土砌块作为粘土砖的主要替代产品，是一种节土、节能、实用、可靠的新型墙体材料。
Mini-type concrete brickwork, as the main substitute of clay brick, has the advantage of saving soil and reducing energy with high practicability and reliability.
分析了传统曲线顶管施工中管土之间的相互作用，建立了首节管道和后续管节的受力模型及土体反力分布模式。
The pipe-soil interaction in the traditional curved pipe jacking is analyzed. The soil counterforce distribution model and load bearing model for the heading and the latter pipelines are set up.
小型混凝土砌块作为粘土砖的主要替代产品，是一种节土、节能、实用、可靠的新型墙体材料。
After the use of clay brick is prohibited by government, the building system which building block substitutes for clay brick becomes the direction of innovation in wall material.
小型混凝土砌块作为粘土砖的主要替代产品，是一种节土、节能、实用、可靠的新型墙体材料。
After the use of clay brick is prohibited by government, the building system which building block substitutes for clay brick becomes the direction of innovation in wall material.
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