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The gunsight has an infrared lens for night vision.是什么意思？

The gunsight has an infrared lens for night vision.

射击瞄准器装有用于夜间视力的红外线镜头.

相关词汇
the gunsight has an infrared lens for night vision

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。

gunsight

n. （枪炮的）瞄准具，瞄准器；
例句
The gunsight has an infrared lens for night vision.
射击瞄准器装有用于夜间视力的红外线镜头.

has

v. 有( have的第三人称单数 )，（亲属关系中）接受，拿，买到；
例句
...the operation a patient has had.
病人做过的手术

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；
例句
He started eating an apple...
他开始吃苹果。

infrared

adj. <物>红外线的；n. 红外线；
例句
...searching with infrared scanners for weapons and artillery.
用红外扫描仪搜索武器与大炮

lens

n. 透镜，镜头，眼睛中的水晶体，隐形眼镜，汽车的灯玻璃；
例句
The camera has a 32mm lens with a maximum aperture of f/4.5 and a fixed shutter speed of 1/100sec.
这架相机有一个32毫米的镜头，最大孔径为f/4.5，固定快门速度为1/100秒。

for

prep. 为，为了，倾向于，关于，当作；conj. 因为，由于；
例句
I've come looking for a bit of advice.
我特来讨教。

night

n. 夜，晚上，（举行盛事的）夜晚；
例句
Video cameras with night vision can be activated by movement.
带夜视镜的摄像机一有动静就会启动。

vision

n. 视力，视觉，想象，幻象，想象力；
例句
Video cameras with night vision can be activated by movement.
带夜视镜的摄像机一有动静就会启动。
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
The government committed a double blunder...
政府重蹈覆辙。
If you already have gout, these foods can trigger an acute attack.
如已患痛风, 则这些食物可诱发痛风急性发作.
The owner couldn't be bothered to brand the cattle.
主人懒得给牛打烙印。
I like to think I'm not prejudiced.
我觉得自己并没有偏见。
working in cramped conditions
在拥挤的环境里工作
The artillery has more firepower than the infantry.
炮兵火力比步兵大.
O'Keeffe was influenced by various painters and photographers, but she was never a member of any school.
欧姬芙受多位画家和摄影家的影响，但她从未加入过任何学派。
The hen brought off a brood of young.
母鸡孵出了一窝小鸡.
The pistol was positioned where I couldn't help but see it...
手枪放在我抬眼就能看见的地方。
The value of his investment has risen by more than $50,000...
他投入的资本已经增值了5万多美元。