ma background
BeDict Logo

ma

/mɑ/ /mɔ/

Meanings
noun

毫弧秒

(usually in the plural) Abbreviation of milli-arcsecond.

Examples :

"The astronomers measured the positions of the stars with very small ma, down to less than one milli-arcsecond. "
天文学家们测量了这些星星的位置，精度非常高，达到了非常小的毫弧秒级别，甚至小于一个毫弧秒。
astronomy math physics science space unit

Related Words

Illustration homework

homework noun

/ˈhəʊmˌwɜːk/ /ˈhoʊmˌwɝk/

作业, 功课。

"You must do your homework before you can watch television."

你必须先做完作业才能看电视。

Illustration friend

friend noun

/fɹɛnd/

朋友，友人

"John and I have been friends ever since we were roommates at college.   Trust is important between friends.   I used to find it hard to make friends when I was shy."

约翰和我自从大学做室友以来一直是朋友。朋友之间信任非常重要。我以前很害羞，所以觉得交朋友很难。

Illustration astronomers

astronomers noun

/əˈstrɑnəmərz/

天文學家

"Astronomers use telescopes to study planets and stars. "

天文學家使用望遠鏡來研究行星和恆星。

Illustration mother

mother noun

/ˈmʌðə(ɹ)/ /ˈmʌðɚ/

母亲，妈妈

"He had something of his mother in him."

他身上带着点儿他妈妈的影子。

Illustration usually

usually adverb

/ˈjuːʒju(ə)li/ /ˈjuːʒ(ʊə)li/

通常，一般。

"Except for one or two days a year, he usually walks to work."

除了每年一两天之外，他通常都走路去上班。

Illustration positions

positions noun

/pəˈzɪʃənz/

位置，地点。

"The teacher assigned students to different positions in the classroom. "

老师把学生们分配到教室里不同的位置。

Illustration plural

plural noun

/ˈplɔː.ɹəl/ /ˈpləɹəl/

复数

"The plural of "cat" is "cats." "

“Cat”的复数形式是“cats”。

Illustration direct

direct verb

/d(a)ɪˈɹɛkt/

指挥，管理，引导。

"to direct the affairs of a nation or the movements of an army"

指挥国家事务或指挥军队行动

Illustration birthday

birthday noun

/ˈbɜːθ.deɪ/ /ˈbɝθˌdeɪ/

生日, 诞辰

"My sister's birthday is next week, and we're planning a party. "

我妹妹的生日下个星期就到了，我们正在计划一个派对。

Illustration address

address noun

/æˈdɹɛs/ /əˈdɹɛs/

地址，住址

"The address on the envelope was 123 Main Street. "

信封上的地址是主街123号。

Illustration abbreviation

abbreviation noun

/əˌbɹiː.viˈeɪ.ʃən/ /əˌbɹi.viˈeɪ.ʃn̩/

缩写，简称.

""Mr. Smith always uses the abbreviation 'etc.' instead of writing out 'et cetera'." "

史密斯先生总是用缩写"etc."，而不是写出完整的"et cetera"。

Illustration measured

measured verb

/ˈmɛʒəd/ /ˈmɛʒɚd/

测量，衡量，度量。

"We measured the temperature with a thermometer.   You should measure the angle with a spirit level."

我们用温度计测量了温度。你应该用水平仪测量这个角度。