Albert Einstein's general theory of relativity predicted that the gravity of an extremely dense body could bend a ray of light so severely that it could not escape.

阿尔伯特·爱因斯坦的广义相对论预言了一个密度极大的物体的重力场能够造成光线严重弯曲以致无法逃脱。

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Organelles, myofilament and dense body were well organized in the smooth muscle cells.

细胞内见各种细胞器，肌丝及致密体平行整齐排列。

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Electron dense body-like core and plate structure were observed both in nuclei and cytoplasm.

细胞核和细胞质内均可见核心样电子致密体和布纹样结构。

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Overall, I would steer clear of the Paleo diet, but we can take away something from our ancestors by eating foods closer to their natural state (less processed), which are more nutrient-dense and digested more slowly by the body.

CNN: Is the Paleo diet healthy?

The body of Obede Loyla Souza was found in dense forest close to his home in the northern state of Para.

BBC: Brazil Amazon: Sixth murder since May amid land rows

The dense network of blood vessels in reindeer noses is also essential for regulating the animal's internal body temperature like many mammals, reindeer don't sweat.

MSN: Scientists unravel the secret behind Rudolph's red nose