The mass transfer rate at the forward stagnation point of the droplet is derived to show the effect of electrostatic forces on the collection of submicron particles. 根據霧滴前向駐點處有限直徑粒子的沉積行為分析了霧滴與粒子間的靜電作用對小粒子捕集效果的影響。
And two fixed point theorems in quasi-metric spaces are obtained. 最後，給出了非對稱度量空間上的兩個不動點定理。
Aim In order to develop and improve the fixed point theorem in metric space and extend the application. 摘要目的為了進一步發展和完善度量空間中的不動點理論，擴展不動點定理的應用範圍。
A cusp is also called a stationary point or point of retrogression gression. 尖點也叫做平穩點或逆行點。
