| 单词 | 大量存在 |
| 释义 | 〔lutein〕A yellow carotenoid pigment, C40H 56O 2, found widely in nature, first isolated in corpus luteum but later discovered in body fats, egg yolk, and green plants; xanthophyll. 叶黄素：一种黄色的类似胡萝卜素的色素，C40H 56O 2，大量存在于自然界中，最初从黄体素中分离出来，后在体内脂肪、蛋黄、绿色植物中也发现了它的存在；胡萝卜醇 〔plentiful〕Existing in great quantity or ample supply.丰富的，富裕的：大量存在或充足供应的〔carbon〕Symbol C A naturally abundant nonmetallic element that occurs in many inorganic and in all organic compounds, exists freely as graphite and diamond and as a constituent of coal, limestone, and petroleum, and is capable of chemical self-bonding to form an enormous number of chemically, biologically, and commercially important molecules. Atomic number 6; atomic weight 12.01115; sublimation point above 3,500°C; boiling point 4,827°C; specific gravity of amorphous carbon 1.8 to 2.1, of diamond 3.15 to 3.53, of graphite 1.9 to 2.3; valence 2, 3, 4. See table at element 符号 C 碳：一种在自然界很丰富的非金属元素，存在于很多无机化合物和有机化合物中，以石墨和金刚石的形式以及作为煤，石灰岩和石油的一种成份大量存在，能在化学上自我结合而形成大量化学上，生物上和商业上重要的分子，原子序数6；原子量12.01115；升华点高于3,500°C；沸点4,827°C；非结晶质碳的比重为1.8至2.1，钻石的比重为3.15至3.53，石墨的比重为1.9至2.3；化合价为2，3，4 参见 element〔somnolent〕-olentus [abounding in] -olentus [大量存在于] 〔spermine〕A crystalline polyamine compound, C10H 26N 4, present in ribosomes and found widely in living tissues along with spermidine. It was originally isolated from semen. 精胺，精素：一种晶体状多胺化合物，化学式为C10H 26N 4,存在于核糖体中，并与亚精胺一起大量存在于活组织中。一旦产生即与精子分离 〔iron〕Symbol Fe A silvery-white, lustrous, malleable, ductile, magnetic or magnetizable, metallic element occurring abundantly in combined forms, notably in hematite, limonite, magnetite, and taconite, and used alloyed in a wide range of important structural materials. Atomic number 26; atomic weight 55.847; melting point 1,535°C; boiling point 2,750°C; specific gravity 7.874 (at 20°C); valence 2, 3, 4, 6. See table at element 符号 Fe 铁：一种银白色的、有光泽、有韧性、可延展，有磁性或可被磁化的金属，以化合物形式大量存在，主要有赤铁矿、褐铁矿、磁铁矿和角岩，在许多种重要结构材料中用作合金的一种。原子序数26；原子量55.847；熔点1,535°C；沸点2,750°C；比重7.874（在20°C时）；化合物2，3，4，6 参见 element〔multitudinous〕Very numerous; existing in great numbers.包括许多个体的：无数的；大量存在的〔cahow〕An earth-burrowing, nocturnal bird(Pterodroma cahow), once abundant in Bermuda but now nearly extinct, with a hooked black beak, brown and white plumage, and a gray underside. Also called Bermuda petrel 百慕大圆尾鹱：一种善掘洞的、夜间活动的鸟（百慕大圆尾鹱）， 曾一度在百慕大大量存在，而今已近于灭绝，有着钩一样的黑色的喙、棕色和白色的羽毛以及灰白色的下部 也作 Bermuda petrel |
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