应变测量基础——介绍应变，应力，印制板弯翘的概念以及应变片等。
Fundamentals of strain Measurement -definition of strain, stress, board flexure and strain gages.
分析中包括了搭板的几何尺寸、材料因素、地基非均匀、枕梁及沥青加铺层对搭板弯拉应力及变形的影响。
The influence of geometric size, material properties of the slabs, inhomogeneous subgrade, sleeper beam and bituminous overlay on the bending stresses and deflection is investigated.
尤其是热轧带钢，它不仅作为薄板和中板可以直接使用，而且还作为冷轧板、焊管和冷弯型钢的原材料。
It can not only be used as slab and sheet, but also as raw and processed materials of cold rolling, weld tube, and cold banding beam.
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