英汉词典

beam 基本解释

n.

梁，栋梁；束；光线；（电波的）波束

vi.

发出光与热；面露喜色；

vt.

播送；以梁支撑；用…照射；流露

vt.& vi.

笑容满面，眉开眼笑；发射电波，播送；放出束状的光（或热）；

变形

复数：beams过去式：beamed过去分词：beamed现在分词：beaming第三人称单数：beams

双语释义

n.(名词)[C]梁,横梁 a large long heavy piece of wood used to support a building or to go from one side of a ship to the other[C]定向无线电波; 光线; 光束 radio waves sent out along a narrow path in one direction only[C]笑容,喜色 a bright look or smilev.(动词)vi. 发出光与热 (of the sun, etc.) send out light and warmingvt. 播送 broadcast (a message, radio programme etc.) in a particular directionvt. & vi. 面露喜色 smile happily and cheerfully

英英释义

beam[ bi:m ]

n.a signal transmitted along a narrow path; guides pilots in darkness or bad weather

同义词：radio beam

long thick piece of wood or metal or concrete, etc., used in constructiona column of light (as from a beacon)

同义词：beam of lightlight beamrayray of lightshaftshaft of lightirradiation

a group of nearly parallel lines of electromagnetic radiation

同义词：rayelectron beam

(nautical) breadth amidshipsa gymnastic apparatus used by women gymnasts

同义词：balance beam

v.smile radiantly; express joy through one's facial expressionemit light; be bright, as of the sun or a light

"The fire beamed on their faces"

同义词：shine

express with a beaming face or smile

"he beamed his approval"

broadcast over the airwaves, as in radio or television

同义词：airsendbroadcasttransmit

have a complexion with a strong bright color, such as red or pink

同义词：glowradiateshine

experience a feeling of well-being or happiness, as from good health or an intense emotion

"She was beaming with joy"

同义词：glowradiateshine

beam 相关例句

词汇搭配

用作名词 (n.)动词+～

• direct a beam at把光束射向…
• fly the beam按照无线电波飞行
• shine a beam at对…射出光束

形容词+～

• electronic beam电子光束,电子柱
• glorious beams灿烂光辉
• high beam远光
• invisible beams看不见的光束
• low beam近光
• main beam正梁

名词+～

• balance beam天平的横杆
• radar beam雷达波束
• radio beam无线电波

介词+～

• off (the) beam脱离航向,不对头,做错
• on the beam沿正确方向
• with a beam of delight高兴地,带着微笑

～+介词

• beam from来自…的光线
• beam of light一道光线,光束
• beam to射向…的光线

用作动词 (v.)～+副词

• beam brightly发出明亮的光
• beam intermittently间歇性地发出热和光
• beam steadily稳定地发出无线信号
• beam chastely善良地微笑
• beam genially亲切地微笑
• beam graciously和善地微笑
• beam sunnily阳光灿烂般地微笑

～+介词

• beam at使…对准
• beam from tower to tower从一塔向另一塔发射
• beam in the distance在远处闪耀
• beam on one's friend朝着朋友微笑
• beam with broad smile笑容可掬
• beam with joy笑逐颜开

词组短语

laser beam激光束

electron beam电子束

concrete beam混凝土梁

on the beam航向正确；正横地；必须用泵抽油的

ion beam离子束

cantilever beam悬臂梁

gaussian beam高斯光束

continuous beam连续梁

light beam光束；线偏振光束；直接光线

box beam箱形梁，盒形梁

walking beam n. （蒸汽机的）步进梁；活动梁

beam on微笑

composite beam复合梁；合成梁；混合梁

main beam主声束；主光束

beam structure梁结构

beam of light光束

steel beam钢梁

electron beam welding电子束焊接

balance beam n. 平衡木；天平横梁；平衡杆，秤杆

curved beam[建]曲梁

更多收起词组短语

同近义词辨析

giggle, laugh, chuckle, roar, sneer, beam, jeer, grin

这组词都有“笑”的意思，其区别是：

gigglev.咯咯地笑，痴笑，傻笑，多指女人和孩子由于紧张、被逗乐、尴尬时所发出的笑声。

The schoolgirls giggled when the famous football player walkedsintostheir classroom.当这个著名的足球运动员走进教室时，女生们都咯咯地笑起来。

laughv.笑，大笑，用于一般的笑或出声的大笑。

chuckle v. (书面语)吃吃的笑，抿嘴笑，轻声笑，多指因得意或领会到某事中的趣味而暗自发笑。

She does not laugh out loud; she only chuckles.她没有笑出声来，只是抿嘴而笑。

roarv.怒吼，咆哮，引申为放声大笑，哄堂大笑。

He roared when he heard the joke.听完这个笑话，他哈哈大笑。

sneerv.冷笑，嘲笑，指以语言、表情、和声调表示轻蔑或嘲弄。

He sneered at the offer and said it was two low.他对报价嗤之以鼻，说它太低了。

beamv.本义指照耀，放光，引申为"微笑"，是正式用语，指面带喜悦或笑容，暗示对他人的友好或内心的满足。

She beamed with happiness.她高兴得眉开眼笑。

jeerv.讥笑，嘲笑，其同义词是mock。

The crowd jeered when the boxer was knocked down.当那个拳手被人打倒时，人群开始嘲笑他。

grinv.露齿而笑，指人因高兴、满足、轻蔑等咧开嘴露齿地笑。

He grinned at his mother.他冲他的妈妈咧嘴一笑。

laugh, sneer, siggle, beam, smile, grin

这组词都有“笑”的意思，其区别是：

laugh最常用词，指因喜悦、愉快或轻视而出声的笑或大笑。

sneer指冷笑、嘲笑。

siggle指发出咯咯的笑声，较多地用于女人或孩子。

beam书面用词，指人因心情舒畅而发出的笑，即喜形于色地笑。

smile指面露微笑，侧重于无声。

grin指露齿而笑。

双语例句

用作不及物动词(vi.)

1. She beamed at me.
   她对我微笑。
2. His face(He) is beaming with delight.
   他高兴得笑容满面。
3. From a sky of untarnished blue the sun beamed down upon Beijing.
   阳光透过万里碧空照耀着北京城。

用作及物动词(vt.)

1. Television began beaming the national nominating conventions into the homes of Americans.
   电视开始向美国家庭播放总统候选人全国提名大会的情况。
2. This is a programme beamed at Japan.
   这是对日本广播的节目。
3. I beamed my flashlight into the corner and saw a mouse.
   我把手电照向墙角,看见一只老鼠。
4. The transmitter will be beamed at Africa.
   这台发射机将用于对非洲广播。

用作名词(n.)

1. A rotary table helps to optimize the beam incidence angle.
   一张旋转的桌子有助于将光线影响之方式角最佳化。
2. Hold the flashlight so that the beam shines straight down on a sheet of white paper.
   手握电筒让光线直射在一张白纸上。
3. A through beam illuminated the dark road ahead.
   一束透射光照亮了前方黑暗的道路。
4. A ns pulse beam device is installed at pulse beam current piping.
   在脉冲束流管道上安装有强流毫微秒脉冲化聚束装置。
5. He struck the beam with his head.
   他的头撞到梁上了。
6. If you hit your head on that beam,you'll know it.
   头要是撞到梁上去了，就有你的好受。

权威例句

Practical cone-beam algorithm
Practical cone beam algorithms
Laser Beam Propagation through Random Media, Second Edition
Laser Beam Propagation through Random Media, Second Edition
Observation of a single-beam gradient force optical trap for dielectric particles
Sensitive measurement of optical nonlinearities using a single beam
Comparison of quantum and semiclassical radiation theories with application to the beam maser
Biochemical outcome after radical prostatectomy, external beam radiation therapy, or interstitial radiation therapy for clinically l...
Biochemical outcome after radical prostatectomy or external beam radiation therapy for patients with clinically localized prostate c...
Three-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Beam Profiles, Data Processing, Radiometer Characterization and...