Geologists think that this fluidized ejecta crater indicates that a layer of permafrost, or water ice, lies just a few meters under the surface.
地质学家认为，这个具有流体化喷出物的陨石坑表明，在地表下几米深处有一层永久冻土层或水冰。
2
Structure of a new fixed bed particle layer deduster, working principle of combined fluidized bed dust-removal device and characteristics of dedusters are introduced.
介绍了新型固定床颗粒层除尘器的结构、组合式流化床清灰机构的工作原理以及除尘器的特点。
3
Using the thin layer static method, the oxiding kinetics of W powder have been studied. The powder for study is classified by fluidized new technique.