medium grained sand

Then the PIB model is expanded to the case of multiple species in multiple tier system.

运用“箱中粒子”模型 ( PIB)对空间碎片环境的演变趋势进行了研究。

Research on Medium-granularity Dynamic Update with Semantics Considered;

语义相关的中粒度动态更新技术研究

The influences of the series connection seperation equipment on the overflow flux and sediments half-content diameter D50 were studied by orthogonal test, range analysis and variance analysis.

考虑试验因素对溢流量和溢流中粒径D50影响程度的大小以及它们在分离中所起作用的大小,优化了串联分离设备参数:旋流入口压力为0。