Word · Frequency #4250
acs
锕（一种放射性元素）
acs is the plural of ac.
核心释义
a radioactive element of the actinide series; found in uranium ores
- 1.
账户；记账货币
account; money of account
- 2.
脂环族的
alicyclic
交流电；账户；记账货币；脂环族的；公元前；[计] 存取周期
用法In use
Most home appliances run on ac rather than dc.
用法提示：ac 在这里是 'alternating current'（交流电）的缩写，用作不可数名词。
The power supply can output both ac and dc.
用法提示：ac 作为缩写指代交流电，用作不可数名词。
Transformers are used to step up or step down ac voltage.
用法提示：ac 修饰名词 'voltage'，表示交流电压。
an ac (alternating current) + verb
作为交流电的缩写，ac前可加不定冠词an。
An ac flows through the circuit.
交流电流过电路。
ac (actinium) + verb + as + noun
作为化学元素符号，ac通常视为不可数名词，不加冠词。
ac is used as a neutron source.
相关词与表达Connections
搭配Collocations
- ac isotope
- 锕同位素
- The researchers studied the decay of the ac isotope.研究人员研究了锕同位素的衰变。
- ac extraction
- 锕提取
- ac extraction from ore is a complex process.从矿石中提取锕是一个复杂的过程。
- ac power
- 交流电源
- Many appliances run on ac power.许多电器使用交流电源。
- ac voltage
- 交流电压
- The ac voltage in the house is 220 volts.家里的交流电压是220伏。
- ac circuit
- 交流电路
学习提示Learner notes
记忆技巧Memory Tip
AC是交流电的英文缩写，像交流一样来回流动；锕（Ac）是元素周期表中的一个放射性元素，可记作‘啊，C位元素’。
语境与语域Context & Register
Register: mixed; contexts: chemistry, physics, nuclear research (for actinium); electrical engineering, electronics, home appliances (for alternating current). Note: 由于'ac'可表示锕或交流电，使用语境差异较大：前者多见于科学研究，后者常见于电气工程和日常描述。通常需根据上下文判断。
发音与拼写Pronunciation & Spelling
These words all rhyme with 'ac' when pronounced as /æk/ (as in the chemical element actinium). Note that 'ac' is also commonly pronounced as /eɪ siː/ in the abbreviation 'AC' (alternating current), which does not rhyme with these words.
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
一起学习词形Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.