微陨星微小的陨星颗粒，特指大量坠向地球或月球表面的微陨星
A tiny particle of meteoric dust, especially one of many that fall to the surface of the earth or moon.
粗磨粉谷类植物完全或粗磨的可食用颗粒
The edible whole or coarsely ground grains of a cereal grass.
谷粒禾谷类作物的一个颗粒
A single grain of a cereal plant.
