The high speed development of heating ventilation and air condition technique injected vital force and energy for modem architecture.
暖通空调技术的高速发展为现代建筑注入了生命力和能量。
The ultra high speed grinding mode may improve the cutting condition of the grains and thus reduce the specific grinding energy.
采用超高速磨削，对改善磨粒的切削状态，降低比磨削能是非常有利的。
This paper derived the formulation for the real efficient emission coefficient of secondary electron under the condition that high energy primary electron incident on metal obliquely.
推导出高能原电子斜入射时的金属的有效真二次电子发射系数的表达式，它与入射角的余弦近似成反比。
应用推荐