Appalled that 4m children did not even have desks, let alone schoolrooms, he invented a “lapdesk” that sits on the child’s lap and provides a stable surface.
因为惊讶于4百万个孩子没有书桌，更不用说教室了，他发明了膝上型桌子，靠在孩子的腿上可以提供一个稳定的平面供阅读及书写。
Lap. Fold of metal which has been rolled or otherwise worked against the surface of rolled metal, but has not fused into sound metal.
折叠。经过轧制或采用其它方式加工的金属沿着轧制金属表面折叠起来，但并未被熔合成完好金属。
When kitties knead your lap or a surface near you, it means they're relaxed and content.
当猫咪轻抚你的大腿或者你身边某个物品的表面时，这意味着它很放松、满足。
Place your child on his stomach across a firm surface or your lap before taking his temperature.
使用体温计前将小孩腹部向下放在一个稳固的平面或你的大腿上。
In optics polishing process, the active lap can reshape the profile for fitting the surface of large optical component with different local position and rotating Angle in real time.
能动磨盘在光学抛光时随磨盘移动位置和旋转角度不同而产生不同的变形以实时与大口径被抛光工件表面实现良好的吻合。
It was found that surface of the castings is good and defects such as misrun or cold lap were not found.
试制后得到的支架铸件表面光洁，未出现欠铸、冷隔等铸造缺陷。
The results shown that a deformation-free joint with good weld surface appearance can be obtained with suitable welding conditions for butt-joint and lap-joint of the dissimilar materials.
结果表明，当焊接工艺参数合适时，可以获得表面成形良好、无变形的铝合金与钢的对接接头和搭接接头。
The location of surface-to-surface contact is indicated by a set of red points that further form a contact spot showing the lap configuration.
地对地接触的位置表示一组红点，进一步形成一个触球点，展示了一圈配置。
Fatigue specimens cracked at two-sided through-thickness sheet, fatigue crack appeared initially in HAZ of inner surface of lap plates, along the thickness direction extended to outer surface;
试件的疲劳断裂模式全部为双面穿板断裂，疲劳裂纹起始于点焊热影响区搭接板内表面，沿板厚方向向外表面扩展；
Fatigue specimens cracked at two-sided through-thickness sheet, fatigue crack appeared initially in HAZ of inner surface of lap plates, along the thickness direction extended to outer surface;
试件的疲劳断裂模式全部为双面穿板断裂，疲劳裂纹起始于点焊热影响区搭接板内表面，沿板厚方向向外表面扩展；
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