国际音标

英 [biːm]

美 [biːm]

中文解释

n. 横梁, 杆, 光线, 容光焕发
vi. 用梁支承, 微笑, 射出光线
vt. 照耀, 感到欣喜

英英词典

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 construction

a column of light (as from a beacon)

同义词：beam of light, light beam, ray, ray of light, shaft, shaft of light, irradiation

a group of nearly parallel lines of electromagnetic radiation

同义词：ray, electron beam

(nautical) breadth amidships

a gymnastic apparatus used by women gymnasts

同义词：balance beam

例句应用

1、In optical engineering application, the prisms'beam folding function is often used to implement the image rotation, detection and measurement.

在光学工程应用方面，常利用棱镜对光路的折转作用，完成一定的转像、检测和测量等工作。

2、A vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen.
阴极射出一束电子通过高压正极的真空管。

3、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。