nucleus
意味: The dense central core of an atom, containing protons and neutrons; also the central structure of a cell containing genetic material; figuratively, the core or most essential part of something.
Nucleus is used across multiple scientific disciplines. In physics, it is the positively charged centre of an atom. In biology, it is the membrane-bound organelle that houses DNA. In figurative usage, it describes the central, most important element around which other things are organised. The plural is 'nuclei,' and the adjective form is 'nuclear.'
例文
- The nucleus of a uranium atom can be split to release enormous amounts of energy. 铀原子的原子核可以被分裂,释放出巨大的能量。El núcleo de un átomo de uranio puede escindirse para liberar enormes cantidades de energía.ウラン原子の原子核は分裂させることで莫大なエネルギーを放出できる。우라늄 원자의 핵은 분열시켜 막대한 양의 에너지를 방출할 수 있다.
- DNA is stored within the nucleus of almost every human cell. DNA储存在几乎每个人体细胞的细胞核中。El ADN se almacena dentro del núcleo de casi todas las células humanas.DNAはほぼすべてのヒト細胞の核内に保存されている。DNA는 거의 모든 인체 세포의 핵 안에 저장되어 있다.
- A small group of dedicated volunteers formed the nucleus of what would become a national charity. 一小群敬业的志愿者组成了后来发展为全国性慈善机构的核心。Un pequeño grupo de voluntarios comprometidos constituyó el núcleo de lo que acabaría siendo una organización benéfica de ámbito nacional.少数の献身的なボランティアが、後に全国的な慈善団体へと発展する組織の核を形成した。소수의 헌신적인 자원봉사자들이 후에 전국적인 자선단체로 발전하게 될 조직의 핵심을 형성했다.
発音
使い方ガイド
場面: academic, professional, media
トーン: neutral
起源と歴史
From Latin nucleus (kernel, inner part), diminutive of nux (nut). The scientific use began in the 18th century for biological cells and was extended to atomic physics by Ernest Rutherford in 1911.
文化的背景
Era: Modern
Generation: All ages
Social background: Universal
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