beam

beam 基本解释

n.  光线; (电波的)波束; (粒子的)束; (建筑物的)梁; (体操运动的)平衡木
v.  笑容满面; 眉开眼笑; 发射(电波); 播送; 照射; 射出光(或热)

beam 词性变化

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

高考计算机CET4考研TOEFLIELTSTEM8CET6TEM4GRE

beam 词组短语

• gate-beam tube
• gated-beam detector
• gated-beam tube
• pencil beam
• balance beam
• scanning beam
• light beam deflector
• beam and sling
• beam balance
• electron beam

beam 详细解释

noun

1. 光线；（电波的）波束；（粒子的）束
   a line of light, electric waves or particles
   1. narrow beams of light/sunlight
      一丝丝的光线 / 阳光
   2. the beam of a torch/flashlight
      手电筒 / 闪光灯光柱
   3. a laser/electron beam
      激光 / 电子束
   4. The car's headlights were on full beam (= shining as brightly as possible and not directed downwards) .
      那辆汽车大开着前灯。
   5. a car with its high beams on
      前灯大开着的汽车
2. （建筑物的）梁
   a long piece of wood, metal, etc. used to support weight, especially as part of the roof in a building
   1. The cottage had exposed oak beams.
      小屋的橡木梁裸露着。
3. （体操运动的）平衡木
   a wooden bar that is used in the sport of gymnastics for people to move and balance on
4. 笑容；眉开眼笑
   a wide and happy smile
   1. a beam of satisfaction
      满意的笑容

verb

1. 笑容满面；眉开眼笑
   to have a big happy smile on your face
   1. He beamed at the journalists.
      他笑容满面地面对记者。
   2. She was positively beaming with pleasure.
      她的确喜不自胜。
   3. The barman beamed a warm smile at her.
      酒吧侍者对她热情地微笑。
   4. ‘I'd love to come,’ she beamed (= said with a large smile) .
      “我很乐意来。”她满面笑容地说。
2. 发射（电波）；播送
   to send radio or television signals over long distances using electronic equipment
   1. Live pictures of the ceremony were beamed around the world.
      典礼经实况转播传到世界各地。
3. 照射；射出光（或热）
   to produce a stream of light and/or heat
   1. The morning sun beamed down on us.
      早上的太阳照射着我们。
   2. Light beamed through a hole in the curtain.
      光线透过窗帘上的一个孔照射进来。

beam 习惯用语

n.

off beam

• 不正确；错误
  not correct; wrong
  1. Your calculation is way off beam.
     你的计算完全错误。

v.

smile/grin/beam from ear to ear

• 眉开眼笑；笑得合不拢嘴
  to be smiling, etc. a lot because you are very pleased about sth

beam 双语例句

1. 1、 A burst of sunshine sent a beam of amber light through the window
   破云而出的阳光透过窗户送来一束琥珀色的光线。
2. 2、 Frances beamed at her friend with undisguised admiration
   弗朗西丝开心地对自己的朋友笑着，毫不掩饰她的羡慕之情。
3. 3、 'Welcome back,' she beamed.
   “欢迎回来，”她满面笑容地说。
4. 4、 The interview was beamed live across America
   这次访谈向全美国现场直播。
5. 5、 The live satellite broadcast was beamed into homes across America.
   此次卫星直播被发送到美国的千家万户。
6. 6、 A sharp white spotlight beamed down on a small stage
   聚光灯的强烈白光照在小舞台上。
7. 7、 All you see of the outside world is the sunlight beaming through the cracks in the roof.
   而外面的世界，你所能看见的就只是透过房顶缝隙射进来的阳光。
8. 8、 The ceilings are supported by oak beams.
   房顶用橡木横梁支撑。
9. 9、 Fix the beam with the brackets and screws.
   把横梁用托架和螺丝固定。
10. 10、 He directed the tiny beam of light at the roof.
    他把那一小束光对准了屋顶。
11. 11、 Len studied it a moment in the beam of his flashlight
    莱恩借着手电筒的光亮把它仔细研究了一会儿。
12. 12、 She froze when the beam of the flashlight struck her.
    当手电筒的光照到她身上时她僵住了。
13. 13、 Researchers realised that a tunable laser beam might be useful in surgery.
    研究人员意识到，可调谐激光束也许可以用在外科手术中。
14. 14、 The electron microscope uses a beam of electrons to produce images at high magnifications
    电子显微镜利用电子束形成高倍影像。
15. 15、 Everything she says is a little off beam.
    她的话全都不大靠谱。
16. 16、 A flashlight beam probed the underbrush only yards away from their hiding place
    一束手电筒的光束在离他们的藏身之地只有几码远的灌木丛里搜寻着。
17. 17、 This strut braces the beam.
    这根柱子支撑房梁。
18. 18、 The gymnast performed on the balance beam with an easy grace.
    体操运动员在平衡木上表演得优美自如。
19. 19、 A high beam energy is also used to stimulate X-ray emission of higher-energy peaks.
    高能量电子束也能用来激发高能量x射线峰的发射。
20. 20、 Suddenly the beam of an electric torch was flashed into his face.
    忽然一道手电光射到他脸上。
21. 21、 She would artfully position herself in a beam of October sunlight in our living room.
    她会美妙地把自己安置在我们家客厅里面一道十月阳光之中。
22. 22、 His answer was on the beam.
    他的答案正确。
23. 23、 "how nice to see you!" she said, with a beam of welcome.
    “很高兴见到你！”她笑迎着说。
24. 24、 The joint of slab and column has good resisting shear capacity when the hidden beam is placed in the floor.
    暗梁的布置使板柱节点具有良好的抗冲切能力。
25. 25、 In a beam type compensator a stress pattern produced by pure bending is frozen into the material.
    在梁式补偿器中，其应力光图是由纯弯曲产生而被冻结在材料之中。
26. 26、 She is getting very broad in the beam; she must try to lose some weight.
    她现在变的腰肥臀大了，必须设法减轻体重。
27. 27、 The brace is at too big an angle with the beam.
    撑条和横梁之间角度太大。
28. 28、 This can be accomplished by using a beam splitter.
    利用一个分束器就能完成上述过程。
29. 29、 The lamp sends out a powerful beam.
    这盏灯发放出强光。
30. 30、 The beam from the flashlight pierced the darkness.
    手电的光柱刺破了夜幕。

beam 英英释义

noun

1. a gymnastic apparatus used by women gymnasts

   Synonym:    balance beam

2. long thick piece of wood or metal or concrete, etc., used in construction

3. the broad side of a ship
   1. they sighted land on the port beam

4. (nautical) breadth amidships

5. a signal transmitted along a narrow path

   Synonym:    radio beam

6. a column of light (as from a beacon)

   Synonym:    beam of lightlight beamrayray of lightshaftshaft of lightirradiation

7. a group of nearly parallel lines of electromagnetic radiation

   Synonym:    rayelectron beam

verb

1. smile radiantly

2. broadcast over the airwaves, as in radio or television
   1. We cannot air this X-rated song

   Synonym:    airsendbroadcasttransmit

3. express with a beaming face or smile
   1. he beamed his approval

4. experience a feeling of well-being or happiness, as from good health or an intense emotion
   1. She was beaming with joy
   2. Her face radiated with happiness

   Synonym:    glowradiateshine

5. have a complexion with a strong bright color, such as red or pink
   1. Her face glowed when she came out of the sauna

   Synonym:    glowradiateshine

6. emit light
   1. The sun shone bright that day
   2. The fire beamed on their faces

   Synonym:    shine