| 单词 | 低密度 |
| 释义 | 〔VLDL〕A lipoprotein containing a very large proportion of lipids to protein and carrying most cholesterol from the liver to the tissues.极低密度脂蛋白：一种脂蛋白，含有大量脂质到蛋白质，并带有从肝脏到组织的大部分胆固醇〔apolipoprotein〕Any of various proteins that combine with a lipid to form a lipoprotein and are a constituent of chylomicrons, HDL, LDL, and VLDL.阿朴脂蛋白，藻胆色素蛋白：同脂质结合形成脂蛋白的各种蛋白质，是乳糜微粒、高密度脂蛋白、低密度脂蛋白和超低密度脂蛋白的成分〔titanium〕A strong, low-density, highly corrosion-resistant, lustrous white metallic element that occurs widely in igneous rocks and is used to alloy aircraft metals for low weight, strength, and high-temperature stability. Atomic number 22; atomic weight 47.90; melting point 1,660°C; boiling point 3,287°C; specific gravity 4.54; valence 2, 3, 4. See table at element 钛：一种坚固、低密度、高度抗腐蚀的带光泽的白色金属元素，广泛存在于火成岩中，由于其质量轻，牢固和抗高温的性能被用于做飞行器的合金。原子序数22；原子量47.90；熔点1,660°C；沸点3,287°C；比重4.54；原子价2,3,4 参见 element |
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