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The main useful mineral is celestine.是什么意思？

The main useful mineral is celestine.

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.

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；
例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

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；
例句
The school occupies split-site accommodation on the main campus...
该学院分散在主校区不同地点。

useful

adj. 有用的，有益的，有帮助的，令人满意的；
例句
A tripod will be useful to align and steady the camera...
三脚架有助于调准和稳定相机。

mineral

n. 矿物，矿石，矿物质，汽水；adj. 矿物的，似矿物的；
例句
...an effervescent mineral water.
含汽矿泉水

is

vt.& vi. 是（be的三单形式；n. 存在；
例句
Bollinger 'RD' is a rare, highly prized wine.
博林格RD香槟是一种名贵的备受推崇的葡萄酒。

celestine

天青石；
例句
This paper shows the test results of certain celestine ore.
论述了某天青石矿浮选试验研究结果.
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。
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。
This decree obliges unions to delay strikes.
该法令迫使工会推迟罢工。
Nothing to be got without pains but poverty.
一份耕耘，一份收获。
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。
Supporters of the death penalty argue that it would deter criminals from carrying guns...
死刑的支持者认为它能阻吓罪犯携带枪支。
相关例句
Kathryn looked down at the floor and the smile died on her lips.
凯瑟琳低头看向地板，笑容从她的嘴角消失了。
The post office is on the right.
邮局在右边。
The people of an oppressed country obey their conquerors because they want to go on living.
受压迫国的人民为了活下去只得听命于征服者。
watery eyes
泪眼
Some of the commonly used location abilities include mapping, geocoding, positioning and routing.
常用的定位功能包括绘图 、 地理编码 、 定位和路由.
Brush or roller for small areas and touch - up only.
小面积可采用刷涂或辊涂.
He is a pal of mine.
他是我的一个朋友。
Water is the opposing force to fire.
水火不相容。
He thought of another way of getting out of the marriage...
他又想到一个摆脱那桩婚姻的点子。
Joy shared with others are more enjoyed.
与人同乐，其乐无穷。