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aluminium [ˌælʲʊˈmınıəm] 名词

action film 名词

activist [ˈæktıvıst] 名词

activity [ækˈtıvıtı] 名词

titanium [taıˈteınıəm] 名词

I . acting [ˈæktıŋ]

II . acting [ˈæktıŋ] 名词

cranium <craniums or crania [ˈkreınıə] > [ˈkreınıəm] 名词

plutonium [pluːˈtəʊnıəm] 名词

actioner [ˈækʃənə] 名词

activate [ˈæktıveıt] 动词 trans

▶ activation [ˌæktıˈveıʃən] 名词

action picture 名词

geranium [dʒıˈreınjəm] 名词 植物

active [ˈæktıv]

2. active 语言:

▶ actively

uranium [jʊəˈreınıəm] 名词

单语范例(未经PONS编辑处理)

英语
Polonium, radium and radon were observed before actinium, but they were not isolated until 1902.
en.wikipedia.org
The actinide series derives its name from the group 3 element actinium.
en.wikipedia.org
Ac was that intravenous injection of simple actinium complexes resulted in their accumulation in the bones and liver for a period of tens of years.
en.wikipedia.org
The actinide series comprises the elements from actinium to lawrencium.
en.wikipedia.org
The close similarity of physical and chemical properties of actinium and lanthanum makes separation of actinium from the ore impractical.
en.wikipedia.org
The most abundant, or easy to synthesize actinides are uranium and thorium, followed by plutonium, americium, actinium, protactinium and neptunium.
en.wikipedia.org
Ac, the radiation from the actinium and its decay products might induce new mutations.
en.wikipedia.org
Actinium is mostly present in uranium-containing, but also in other minerals, though in much smaller quantities.
en.wikipedia.org
He tested for elements below uranium in the periodic table: radon, actinium, polonium, as far back as lead it was none of these.
en.wikipedia.org
Owing to its scarcity, high price and radioactivity, actinium has no significant industrial use.
en.wikipedia.org

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