Cholesterol is a waxy substance that, among other things, provides structure to the body's cell membranes.

胆固醇是一种蜡状物质，除了其它方面功能，它还是机体细胞细胞膜的构成成分。

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This substance is secreted from cell in the intestinal walls.

这种物质是从肠壁的细胞中分泌出来的。

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The imbalance of interstitial cell proliferation and apoptosis and the metabolic disorder of intercellular substance, are two essential factors for renal tubulointerstitial fibrosis.

间质细胞增殖和凋亡失衡及细胞间质代谢失调也是造成肾小管间质纤维化的两个不可缺少的原因。

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Nope, GM just wanted to talk about its research efforts to store hydrogen onboard fuel-cell vehicles within a solid substance.

FORBES: Hydrogen Gas

Nope, GM just wanted to talk about its research efforts to store hydrogen within a solid substance onboard fuel-cell vehicles.

FORBES: Hydrogen Gas