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矿石组构虽然复杂,但其矿物组成比较简单,有用矿物主要为天青石.用英语怎么说？

矿石组构虽然复杂,但其矿物组成比较简单,有用矿物主要为天青石.

The main useful mineral is celestine.

相关词汇
the main useful mineral is celestine

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

main

adj. 主要的，最重要的，全力的；n. 最主要的部分，重点，主要管道，体力，[航海]公海；

useful

adj. 有用的，有益的，有帮助的，令人满意的；

mineral

n. 矿物，矿石，矿物质，汽水；adj. 矿物的，似矿物的；

is

vt.& vi. 是（be的三单形式；n. 存在；

celestine

天青石；
热门例句
He acknowledged publicly that he might have made a mistake.
他当众承认自己可能犯了个错误。
...the spiralling vortex airflow that slows the plane.
使飞机减速的螺旋形气流涡旋
You just go on ahead. I'll come by later...
你只管先往前走。我随后就来。
He who spares his rod hates his son, But he who loves him chastens him early.
24不忍用杖打儿子的,是恨恶他;疼爱儿子的, 趁早管教.
For further information, please contact 414 3925, extension 2253.
详情请致电414 3925,转分机2253。
Baroness Thatcher's claims seem credible to many.
撒切尔女男爵的主张在很多人看来是可信的。
He sat there while I made the case for his dismissal...
他坐在那儿，听我陈述解雇他的理由。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
The right to demand payment from the endorser of a commercial paper when the first party liable fails to pay.
追索权当有支付义务的第一方不能支付时，可以向商业票据的背书人要求支付的权力。
相关例句
The Kravchenko trial became a cause celebre in Paris and internationally.
克拉夫琴克一案在巴黎甚至全世界曾经轰动一时。
Both Chiang and the CC Clique realized they had gone too far.
蒋和CC系都感到自己做得过份了.
With the roof caving in, there were an increasing number of desertions.
由于大势已去, 逃兵的人数日益增多.
Three fractions : CCA, CCB, CCC were got respectively.
水溶性粗多糖用乙醇分级法分离出CCA 、 CCB 、 CCC三种组分.
There were wall-to-wall people, all invited guests and celebrities.
到处都是人，全是邀请来的贵客名流。
Where is everyone? It's like the Mary Celeste here today.
人都到哪儿去了？今天这里的人都神秘失踪了。
Today , in CDMA communication system, we use duality sequence as address code.
在CDMA通信系统中, 主要使用二元序列作为地址码.
In the context of CCITT an administration ( member of ITU ) or a Recognized Private Operating Agency.
在CCITT的术语中,指国际电信联盟的行政组织机构或其成员国或公认的私营机构.
Methods: The cecal ligation and perforation ( CLP ) was utilized to make the abdominal infection in rats.
方法采用大鼠盲肠结扎并穿孔 ( CLP ) 造成腹腔感染.
As I have written before, that's quite a caveat.
正如我以前所写, 那确实是个警告.
The 12 th CCOS will be a pageant in ophthalmology with fruitful contents and colorful format.
整个会议内容丰富、形式多彩,将成会国内、外眼科学界的盛会.
Diacriticals: Marks above and below letters, such as accents or th cedilla.
发间符号: 在字母上面或下面的符号, 如音标或变音符号.
We were taken in flank by a troop of cavalry.
我们翼侧受到一队骑兵的袭击.
He had always wanted to go caving .
他过去一直想探索洞穴。