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concave mirror是什么意思？

concave mirror

凹面镜

相关词汇
concave mirror

concave

n. 凹面，成凹形；adj. 凹的；vt. 使成凹形；

mirror

n. 镜子，反光镜，真实的写照，反映，借鉴，榜样；vt. 反映，反射；
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。
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。
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
I am prepared to make some concession on minor details, but I cannot compromise on fundamentals.
在一些细节上我可以作些让步，但在基本原则上我是不会妥协的。
The printer composed the page.
排字工人排好了这一页。
These products are of high quality and able to compete internationally.
这些产品品质很好, 在国际市场上有竞争能力。
This is a complex sentence.
这是个复合句。
He is a commonplace person.
他是个凡夫俗子。
Complacency could easily result in tragedy.
自满容易道致悲剧。
She made some highly complimentary remarks about their school.
她对他们的学校给予高度的评价。
She had never had any close companionship with another woman.
她从来没有和另一个女人有任何亲密的情谊。
He went to a psychiatrist about his compulsive gambling.
他去看精神科医生治疗不能自拔的赌瘾。
There is keen competition between the two motorcar firms.
两家汽车公司之间存在着激烈的竞争。
We cannot afford to drop behind our competitors.
我们可担当不起落后于竞争对手的后果。
There will be a chess competition next week.
下个星期有一场国际象棋比赛。
He compounded water, sand and soil and formed bricks.
他用水拌和沙和泥土做成砖块。
Income in New England is commonly 10% below the national average.
在新英格兰人们的收入通常比全国平均数低10%。