glass ball短语¹³¹⁶²⁰⁺³ 基本例句 玻璃球 Just for the above, the paper takes fine glass ball as experimental object and uses centrifugal method to study the changing laws of thickness of boundary fluids on the surface of s. 为此，以玻璃微珠为实验对象，采用离心法研究固体颗粒表面边界流体层厚度的变化规律。 dictall