| 单词 | 重要来源 |
| 释义 | 〔franklinite〕A black, slightly magnetic mineral of zinc, iron, and manganese, ZnFe2O 4, that is a valuable source of zinc. 锌铁尖晶石，锌铁矿：锌、铁与锰的有轻度磁性的黑矿物，ZnFe2O 4,是锌的重要来源 〔tuna〕Any of various often large scombroid marine food and game fishes of the genusThunnus and related genera, many of which, including T. thynnus and the albacore, are commercially important sources of canned fish. Also called tunny 金枪鱼：各种金枪鱼 属及相关科属的鲭亚鱼目大观赏鱼和食用鱼中的任意一种，这种鱼大多数，包括 金枪鱼 和白瞳鲔，是罐头装的鱼的重要来源，具商业价值 也作 tunny〔monazite〕A reddish-brown phosphate mineral containing rare-earth metals, (Ce, La, Y, Th)PO4, important as a source of cerium and thorium. 独居石：一种含有稀土（铈、镧、钇、钍）的浅红褐色磷矿，分子式为PO4，它是铈和钍的重要来源 〔Eureka〕A city of northwest California on Humboldt Bay, an arm of the Pacific Ocean. Lumbering, fishing, and tourism are important to its economy. Population, 27,025.尤里卡：加利福尼亚西北部一城市，位于大西洋的洪堡河湾边，木材业、捕鱼业和旅游业是其经济的重要来源。人口27,025〔madder〕The root of this plant, formerly an important source of the dye alizarin.茜草根：该植物的根，原为染料茜素的重要来源〔assai〕Any of several feather-leaved South American palms, especiallyEuterpe edulis and E. oleracea, which are important sources of heart of palm. 巴西椰子树：一种羽状叶的南美洲棕榈树，尤指可食埃塔棕 和 蔬食埃塔棕， 均为棕榈核心的重要来源 〔methane〕An odorless, colorless, flammable gas, CH4, the major constituent of natural gas, that is used as a fuel and is an important source of hydrogen and a wide variety of organic compounds. 甲烷：一种无味，无色，易燃汽体，CH4，是天然气的主要组成部分，被用作燃料，是氢和其它多种有机化合物的重要来源 〔amblygonite〕A white or greenish mineral, (Li,Na)Al(PO4)(F,OH), that is an important source of lithium. 磷铝锂石：一种白色或浅绿色矿石，(Li,Na)Al(PO4)(F,OH)，是锂的重要来源 |
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