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trace element 隐藏摘要
微量元素示蹤化學trace element...微量元素tracer...示蹤劑trans fatty acid
痕量元素trace analysis痕量分析...trace element痕量元素...trace gas痕量气体;微量气体
苦味素苷树脂 pigment...苦味素 trace element...色素 acridine alkaloid
痕量元素;示踪元素tracasol 槐树豆胶...trace element 痕量元素;示踪元素...tracer 示踪物;描绘器
相关词条
与 trace element 相关的例句

- a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.
一种二价或三价金属元素,坚硬的银白色铁磁体,植物动物营养中的微量元素。 - a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts.
在地球的大气层中少量存在的无色无味的惰性气体。 - a colorless element that is one of the six inert gasses; occurs in trace amounts in air.
无色元素,六种惰性气体之一,空气中含量较少。 - a radioactive transuranic metallic element; found in trace amounts in uranium ores; a by-product of the production of plutonium.
一种放射性超铀金属元素,在铀矿中有少量存在,是制造钚的副产品。 - A radioactive transuranic element in the actinide series, artificially produced in trace amounts. Its longest-lived isotope is No255 with a half-life of3 minutes. Atomic number102.
锘在锕类元素中的一种放射性超铀元素,人工微量制造,其最长寿命的同位素是锘255,其半衰期为三分钟,原子序数102 - a rare silvery (usually trivalent) metallic element; brittle at low temperatures but liquid above room temperature; occurs in trace amounts in bauxite and zinc ores.
一种稀有的银色金属元素(通常为三价),低温下易碎,室温以上呈液体状,量少,矾土和锌矿石中含有)。 - geochemistry of trace elements
微量元素地球化学 - A trace or suggestion.
迹象或暗示 - health effects of trace elements
微量元素对健康的影响 - A synthetic element produced in trace quantities by helium isotope bombardment of curium. All isotopes are radioactive, chiefly by emission of alpha particles. Atomic number98; mass numbers244 to254; half-lives varying from25 minutes to800 years.
锎一种合成元素,由氦同位素轰击锔可得到微量的这种元素。所有同位素均是放射性元素,主要放射出α粒子。原子序数98;原子量244到254;半衰期从25分钟到800年不等



柯林斯