旨在缓解失业冲击的项目进展得并不太顺利，参议员萨班斯对此表示关切。Senator Sarbanes expressed concern that programs designed to soften the blow of unemployment are not working well.我们可以想像检波器受几万个砂粒冲击的情景.We can imagine a seismic detector being bombarded by...
这种泡囊化现象即胞饮作用确实发生于某些动物和高等绿色植物细胞.This vesiculation phenomenon, pinocytosis, certainly occurs in some animal and higher green plants.加水后混合物表面就会形成小小的珠状泡囊.To take the form of or become enclosed in a cyst.泡囊:来源不同、形状各异的小型液泡,其内可...
通过XRD和SEM微观测试手段, 研究了粘土-硅质石屑 - 水泥-石灰体系水热合成硬化体组成的微观结构.Through XRD and the SEM microscopic test method, the microstructure of hydro - thermal synthesis hardening has studied....