Pressing water down creates a lot of pressure on the palm because you are changing the direction of the water flow (from towards you to downwards).
往下压水时在手掌处产生了很大的压力,因为你在不停地变化水流的方向(从对着你到朝下)。
By analyzing influencing factors on selection of pressing direction of automotive outer panels, the pressing direction optimization model based on the evaluation function method is created.
通过分析影响汽车覆盖件冲压方向选择的因素,建立了以评价函数法为基础的冲压方向优化模型。
There are difference of density and hardness in iron base bushings with thin walls by single- and double-pressing process along their longitudinal direction.
铁基薄壁衬套采用单向、双向压制方法,都存在着零件的密度和硬度沿高度方向分布不均匀的情况。
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