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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
Some kinds of business are competitive.
有些商业是要竞争的。
The composer’s works will always live on.
这位作曲家的作品将永远留在人间。
electromagnetic compatibility
电磁兼容性
The whole thing was a big con,an elaborate put-down on a massive scale.
这个事情是一场大骗局,一场精心策划的大规模镇压行动。
He accepted last year to become the UN Commissioner in Namibia.
去年他非常乐意地出任了驻纳米比亚的联合国专员。
remain committed to one’s youthful ideal
坚持不懈地追求自己年轻时的理想
He was appointed United Nation High Commissioner for refugees.
他获任命为联合国难民事务高级专员。
The completion of the building is scheduled for May.
该楼定于五月份完工。
They committed more than three divisions to the operations.
他们调了三个多师参加这次战役。
There is an element of compulsion in the new scheme for the unemployed.
新的失业方案里有一种强制因素。
He believes that he and his compatriot student are the future leader.
他相信他和他同国的学生是未来的领袖。
She’s always helpful and complaisant.
她总是又殷勤,又乐于助人。
She kept me waiting without the slightest compunction.
她让我久等却没有丝毫的歉意。
They are communists.
他们是共产主义者。