The old and new concrete of composite beam with double T-section was tested to investigate the effect of tension sequence of prestressing tendon on mechanical behavior of composite beam.

为了解预应力钢绞线张拉顺序对新老混凝土组合梁力学性能的影响，进行了双T形截面新老混凝土组合梁试验研究。

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The joint design, welding procedure and mechanical properties of the joint are studied for resistence welding of thin tubular T connection.

研究了薄壁管T型接头的电阻焊焊件的接触形式，焊接规范及接头的机械性能等。

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Non - contact, magnetic working style, there is no mechanical movement. therefore, users don t have to change the car fracture.

非接触感应式工作方式，自身无机械运动，无需改变电梯轿厢结构。

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When you don't have to worry about criteria like that ordinary, mechanical energy rules supreme, and that's dictating where equilibrium lies.

如果你不担心像这样的要求,通常的机械能就占据主要地位，并且决定平衡位于何处。

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But the reality that we know from our quantum mechanical model, is that we can't know exactly what the radius is, all we can say is what the probability is of the radius being at certain different points.

我们不可能准确的知道,半径是多少，我们只能说，它在不同半径处，的概率是多少，这是,量子力学。

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They don't need that kind of mechanical strength.

就不需要那种机械强度的保护机制

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But in practice they don't, because subtle mechanical effects distort the regularity of the oscillations.

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Which is why today's youngsters mostly can't be bothered with such mechanical contrivances.

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But it wasn't known whether the trigger was mechanical ventilation or early inflammation due to gestational age, the authors of the latest study said.

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