null lens是什么意思

网络释义

用法例句

Partial null lens for general aspheric testing

用于非球面通用化检测的部分零位透镜

Correcting the accuracy of non rotating and aspheric lens by controlling the pressure of the polishing die;

自由曲面透镜型面误差的压力抛光修正

The surgery of rhegmatogenous retinal detachment under indirect ophthalmoscope with no hand-held condensing lens;

无手持聚光透镜间接检眼镜下视网膜脱离手术

Selfoc lenses and their application to optical fiber sensing system;

自聚焦透镜及其在光纤传感系统中的应用

The phase computing formula and designing way for the air three-dimensional Rotman lenses are presented.

介绍了二维多波束天线的特点和实现二维多波束的几种方法 ,针对空馈的Rotman透镜推导出了由它馈电的平面天线阵的相位计算公式及设计方法 ,在此基础上成功地实现了空馈透镜的平面天线阵样机 ,并给出了相应的测试结果。

Partial null lens for general aspheric testing

用于非球面通用化检测的部分零位透镜

partially transmitting mirror splitter

局部透光镜式分离器

air-spaced doublet

双不胶透镜; 双分离透镜; 双分透镜; 空气隙双合透镜; 分离式双透镜

Propergation of Partially Polarized,Partially Coherent Gaussian-Schell Model Electromagnetic Beams Through an Aperture Lens

部分相干部分偏振电磁束通过光阑透镜的传输

Optical Field Distribution of Gaussian Incident Beam at Optical Axis of Lens;

高斯光束在透镜光轴上的振幅及位相分析

A novel aspheric surface testing method using part-compensating lens is presented.

提出用部分补偿透镜进行非球面检验的方法.

In the diagram, the outer portions ofthe projecting lens serve no useful purpose.

在图上，放映透镜较外侧部分未能加以利用。

Propagation Properties of Partially Coherent Light Passing Through an Aperture Astigmatic Lens;

部分相干光通过光阑像散透镜的传输特性

Guarantee Measure of Symmetry Degree when Processing the Square Lens Parts

加工方形透镜零件时对称度保证措施

Free from astigmatism.Used of a compound lens in which the separate components compensate for the astigmatic effects of each lens.

消像散的消像散的，用于复合透镜，其中分隔部分抵消了每一个透镜的散光效果

All three of them use mirror, not lenses at the front.

这三台望远镜前部用的都是曲面镜而不是透镜。

Within the remainder of the dielectric the net charge per unit volume remains zero.

在电介质的其余部分，单位体积的静电荷仍为零。

Analyzing of the technology of parts′ position fixing in mechanical design

机械设计中零部件定位配合的工艺性分析

Spectrum Properties of Partially Coherent Modified Bessel-Gauss Beams Passing Through an Aperture Lens

部分相干修正贝塞尔高斯光束通过光阑透镜的光谱特性

Propagation Properties of Partially Coherent Flat-topped Beam Passing through Astigmatic Lens;

部分相干平顶光束经过双焦距薄透镜的传输特性研究

Focusing of Partially Coherent and Circularly Polarized Bessel-Gaussian Beams Through a High Numerical-Aperture Objective

部分相干圆偏振贝塞耳-高斯光束经高数值孔径透镜的聚焦

Locate the point of zero stress.

定出应力为零的部位。

(2) A lens fault which causes the straught lines in the image to be a curve.It is due to the fact that different area of the lens produce different magnification.

（2）透镜缺点之一。它使直线影像变为弯曲的弧线。这是因为镜片各部分有不同的放大倍率所致。