At the same time, boride thus formed covered the surface acid sites and blocked the pores and channels, leading to higher para-selectivity.
同时,硼化物覆盖了表面酸中心,堵塞了孔道,因而提高了反应的选择性;
Primples form when the skin's pores become blocked with oil.
当你的皮肤里的毛孔受到油脂的堵塞,粉刺就会形成。
After salting out, the fine pores are filled with salt crystals and the proportion reduces significantly, which cause the flow channels downsized and some are even completely blocked.
盐析后,结晶盐填充了岩心中的小孔隙,小孔喉在岩心中的比例明显减少,渗流通道减小,有的甚至完全被堵塞。
应用推荐