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单词 bismuth
释义

bismuth /'bɪzməθ//'bɪzməθ/

英汉-汉英词典
n.
形容词: bismuthal
词组 | 习惯用语
bismuth nitrate 硝酸铋
英语例句库
  1. The samples were ignited, then bismuth subcarbonate in residue was determined by compleximetry.
    供试品经有机破坏后,采用络合滴定法测定制剂中碱式碳酸铋的含量。
  2. The medicine compound includes two or more components of nutro-pyridazol, penicillins, macrocyclic lactones, bismuth salts, ranitidine and its hydrochlorides and omeprazole in certain proportion.
    本发明公开了治疗十二指肠溃疡的复方胃药,该复方胃药包括硝达唑类、青霉素类、大环内酯类、金属铋盐类、雷尼替丁或雷尼替丁盐酸盐、奥美拉唑中的两种或两种以上组分。
  3. We found that pitchblende contains at least two radioactive materials, one of which, accompanying bismuth, has been given the name polonium, while the other, paired with barium, has been called radium.
    我们发现沥青铀矿物中至少含有两种放射性物质:与铋伴生的命名为钋,与钡伴生的命名为镭。

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原声例句
经济学人-科技

The copper plates conducted heat rapidly to and from the bismuth telluride, thus maintaining the temperature difference.

铜片可以把热量迅速地传递到碲化铋上或从碲化铋上导出,这样就能保持气温差。

Crash Course 综合篇

Even ultra stable bismuth, with it's half life longer than the age of the universe.

即使是超稳定的, 它的半衰期也比宇宙年龄还长。

TED-Ed(视频版)

Worse still, existing treatments like mercury and bismuth were considered unreliable at best and potentially harmful at worst.

更糟糕的是,汞和铋等现有疗法往好里说是不可靠的,往坏里说可能有害。

经济学人-科技

They work because certain materials, such as bismuth telluride, generate an electrical potential difference within themselves if one part is hotter than another.

它们之所以能起作用是因为某些材料,比如碲化铋,如果其中一部分比另一部分热,内部就会产生电位差。

经济学人-科技

The third objective, efficient design, involved sandwiching the nanostructured bismuth telluride between two copper plates and then enclosing the upper plate (the one coated with the light-absorbing oxides) and the bismuth telluride in a vacuum.

第三个目标是高效的设计,它涉及到把纳米级的碲化铋夹在两片铜薄片之间然后把位于上方的薄片(这个薄片被覆盖上了吸收光线的氧化物)和碲化铋封入一个真空内。

化学 Crash Course

Well it's fairly simple, given enough time all radioactive elements would decay in to non radioactive forms. Even ultra stable bismuth, with it's half life longer than the age of the universe.

好吧,这很简单,只要有足够的时间,所有放射性元素都会衰变成非放射性形式。 即使是超稳定的, 它的半衰期也比宇宙年龄还长。

SciShow 合集

Japanese research center that used a particle accelerator to bombard a bunch of bismuth – with atomic number 83 – with a beam of zinc ions – with atomic number 30.

日本研究中心使用粒子加速器用一束原子序数为 30 的锌离子轰击一束原子序数为 83 的铋。

Scishow 精选系列

Like the value that I place on corndogs, or Russian hiphop polka, or that girl who sat next to me in Algebra class who had skin like Alabaster and and eyes that shone like crystalline bismuth.

就像我对玉米热狗,俄罗斯嘻哈波尔卡,或者在我的代数课上坐在我旁边的那个女孩所赋予的价值一样,她的皮肤光洁雪白,眼睛像铋晶体一样闪闪发光。

中文百科

化学元素铋的合成晶体,表面是非常薄并闪光的氧化层。
铋

Bismuth)是一种化学元素,它的化学符号是Bi,它的原子序数是83,是有银白色光泽的金属。

铋的化学性质与砷及锑类似。铋是最反磁性(又称抗磁性)的金属,亦是除汞以外有最低热导率的金属。铋还拥有最高的霍尔系数 ,它具有较高的电阻 。当铋以级薄的层在物体表面沉积是有半导体的性质,尽管铋是一个后过渡金属。可用于制备易熔合金及与锡融合防止锡疫。

铋是一种脆性金属,在自然界中,常以单质形式出现。铋晶体的表面有时会呈现出不同颜色的色调,这是由于铋晶体在空气中氧化时形成的氧化层厚度不一,导致不同波长的光受到不同程度的反射,因此呈现出彩虹的颜色。

英语百科

Bismuth 铋

Alchemical symbol used by Torbern Bergman, 1775
Bismuth crystal illustrating the many iridescent refraction hues of its oxide surface
Artificially grown bismuth crystal illustrating the stairstep crystal structure, with a 1 cm3 cube of bismuth metal

Bismuth is a chemical element with symbol Bi and atomic number 83. Bismuth, a pentavalent post-transition metal, chemically resembles arsenic and antimony. Elemental bismuth may occur naturally, although its sulfide and oxide form important commercial ores. The free element is 86% as dense as lead. It is a brittle metal with a silvery white color when freshly produced, but is often seen in air with a pink tinge owing to surface oxidation. Bismuth is the most naturally diamagnetic element, and has one of the lowest values of thermal conductivity among metals.

近义、反义、联想词
近义词
n.
metallic element, metal

联想词
boron硼;cobalt钴;chromium铬;zinc镀锌于…;cadmium镉;copper铜;oxide氧化物;lithium锂;manganese锰;tungsten钨;sulfide硫化物;
英英词典
bismuth n.
  1. a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals

  2. synonymous: Bi, atomic number 83
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更新时间:2025/6/17 15:57:14