narrow central pencil

The application of the narrow laser beam in making hologram;

细激光束在全息照像中的应用

Automatic Focusing System Design of Eccentric Beam in Aspheric Surface Measuring Technology;

非球面检测中偏心光束对焦系统设计

The basic optical requirement is a fine pencil, or thin ribbon of highly collimated, monochromatic, polarized light.

基本的光学要求是要有一个高度准直的单色偏振光的细光束或薄光带。

Study on Machining Small Precision Optical Component Using Thin Ion Beam

应用细小离子束加工小型精密光学零件

illuminating laser beam

照射激光束，照明激光束

collimated lihgt beam

准直光束，平行光束

Study of Laser Beam Width, Beam Quality and Focal Shift;

激光光束束宽、光束质量和焦移的研究

luminous flux

【物】光束, 光通量

double-beam grating spectrophotometer

双光束光栅分光光度计

A thin line or narrow beam of light or other radiant energy.

光线，放射线极细的一条或极窄的一束亮光或其它辐射能

At the other end, an optical fibre transports a laser beam which illuminates the tissue.

在另一端，光导纤维传导用来照亮细胞组织的激光束。

A device which transmits an extremely narrow and coherent beam of electromagnetic energy in the visible light spectrum.

一种能够发射可见光谱电磁能的极细的相干光束的装置。

Influences of the bandwidth on the transverse intensity distributions are analyzed in detail from numerical calculations.

利用所得公式通过数值计算详细分析了光束的频带宽度对光束横向强度分布的影响。

double - beam spectrodensitometer

双光束分光光密度计

Using a laser, Epstein carefully cut along a natural fissure in the cord. The laser's beam cauterized the small vessels as it moved along.

他使用激光仔细地沿着脊髓的天然裂纹切开，光束边移动边烙着微细血管。

collimated laser beam

激光平行光束，平行激光束

Laser beams are used by doctors for delicate surgery- such as repairing damaged eyes.

医生们用激光束做精细的手术－－－例如修被受损坏的眼睛。

a hair-thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images.

一种头发粗细的纤维，由玻璃制成，能传导光线，成束使用以传输图像。

The Relationship between the Gaussian Energy Distribution of Laser Microbeam and the Damage Diameter of Cell

激光微束的高斯能量分布与细胞损伤直径之间的关系

Abstract: The propagation properties of coherent and incoherent flattened Gaussian beams have been studied in detail.

文摘:对完全相干和非相干平顶高斯光束的传输特性作了详细研究。