beam

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

1. [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
2. [C]定向无线电波; 光线; 光束 radio waves sent out along a narrow path in one direction only
3. [C]笑容,喜色 a bright look or smile

1. vi. 发出光与热 (of the sun, etc.) send out light and warming
2. vt. 播送 broadcast (a message, radio programme etc.) in a particular direction
3. vt. & vi. 面露喜色 smile happily and cheerfully

• 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

• 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

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

• 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

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

• 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

• 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

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

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。

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。

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。