scandium

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数据源: ai_enrichment
钪是一种化学元素,符号为Sc,原子序数21,属于稀土金属,常用于合金和电子材料中。

用法要点

名词用法

Scandium通常作为不可数名词使用,指代这种金属元素本身,在化学和材料科学领域常见。

• scandium metal
• scandium oxide
• scandium alloy

介词搭配

与scandium搭配的常见介词包括in(表示在某种材料或环境中)、with(表示与其他元素结合)和for(表示用途)。

• scandium in alloys
• combined with scandium
• used for lighting

语域说明

Scandium属于专业词汇,主要在化学、材料科学、工程等学术或技术语境中使用,日常对话中较少出现。

• scientific research on scandium
• industrial applications of scandium
• scandium in periodic table

基础例句

Scandium is a rare metal that is often used in special alloys.

钪是一种稀有金属,常用于特种合金中。

I learned about scandium in my chemistry class today.

我今天在化学课上学到了关于钪的知识。

This new bike frame contains scandium to make it lighter.

这个新自行车车架含有钪,使其更轻便。

Do you know where scandium is found in nature?

你知道钪在自然界中存在于哪里吗?

高级例句

The research team developed a scandium-aluminum alloy with enhanced strength for aerospace applications.

研究团队开发了一种用于航空航天应用的钪铝合金,其强度得到了提升。

Scandium oxide is utilized in high-intensity discharge lamps to improve color rendering.

氧化钪被用于高强度放电灯中,以提高显色性。

The company invested in scandium extraction technology to meet growing demand in the electronics industry.

该公司投资于钪提取技术,以满足电子行业日益增长的需求。

In material science, scandium doping can modify the properties of semiconductors.

在材料科学中,钪掺杂可以改变半导体的性能。

高频搭配

verb

extract scandiumproduce scandiumuse scandiumstudy scandiumapply scandium

adjective

pure scandiumrare scandiummetallic scandiumcommercial scandiumnatural scandium

noun

scandium oxidescandium alloyscandium compoundscandium metalscandium ion

adverb

commonly used scandiumrarely found scandiumwidely applied scandium

preposition

scandium in materialsscandium with aluminumscandium for aerospace

phrase

scandium-based materialsscandium-containing alloysscandium extraction process

常见错误

❌ 错误:Scandium is a common metal.
✓ 正确:Scandium is a rare metal.

钪是稀土元素,在自然界中含量稀少,因此用'rare'(稀有的)更准确,而不是'common'(常见的)。

❌ 错误:I have a scandium in my pocket.
✓ 正确:I have some scandium in my pocket.

Scandium作为物质名词通常不可数,应使用'some'等量词修饰,避免直接加不定冠词'a'。

近义词辨析

lanthanum

镧是另一种稀土元素,原子序数57,常用于催化剂和光学玻璃,而钪(原子序数21)更轻,常用于合金和电子材料。

Scandium is lighter than lanthanum and often used in aerospace alloys, while lanthanum is common in catalytic converters.

yttrium

钇也是稀土元素,原子序数39,常用于荧光粉和超导材料,而钪的密度更低,更适用于轻质合金。

Yttrium is used in red phosphors for TVs, whereas scandium is preferred for lightweight structural materials.