研究出的低聚合物加量胶凝酸体系，降低酸液滤失，实现酸液缓速和深穿透的目的。
The acid gelling of less additive can reduce leak in crack or hole and delay acid reaction to penetrating through farther.
无尽的黑暗则是妨碍深海探索的另一大障碍，因为阳光只能穿透几百米深的海水。
Unrelenting darkness is another barrier to exploring the deep. Sunlight penetrates seawater to a depth of only a few hundred feet.
那片真空，由于没有光可以穿透它，便呈现出完全的黑色——并不是比黑色深或比黑色浅，不是那种我们宽泛地将之归类于这个词的东西，而是完全的、彻底的无限黑暗。
The empty region, since no light ever penetrates it, is absolutely black-not more or less black, like the things to which we loosely ascribe this word, but utterly, completely and infinitely black.
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