这层表皮显著地改变了水份渗入土壤的速度。
This crust dramatically changes the rate at which water filters into the soil.
科技已渗入我们生活的每一个方面，其结果是社会以前所未有的速度发生着变化。
Science and technology have come to pervade every aspect of our lives, and, as a result, society is changing at a speed which is quite unprecedented.
研究结果表明；钛催渗具有明显的催渗效果，可使氮、碳原子的渗入速度显著加快，提高渗层深度和渗层硬度。
The study shows that there exist remarkable Ti catalysis effects, which can increase the depth of a nitrided layer, enhance its surface hardening and nitrocarburize rapidly.
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