伦敦穿透深度 penetration depth of london ; [物] London penetration depth
有效穿透深度 Effective depth penetration ; EDP ; effective penetration
总穿透深度 overall penetration
电流穿透深度 penetration of current
岩心穿透深度 efficiency of core penetration ; ECP
最大穿透深度 maximum penetration
穿透深度控制 penetration control
有效岩心穿透深度 effective core penetration ; ECP
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.
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.
这种光波可以穿透皮肤几厘米深。
This wavelength of light can penetrate several centimetres into the skin.
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