1) beam masking
射束遮拦
2) shielding effect
遮拦效应
1.
Analysis of the shielding effect of a pile group adjacent to tunneling;
隧道开挖条件下被动群桩遮拦效应分析
2.
Then the shielding effect due to pile-pile interaction of passive group pile was computed usin.
第一阶段采用Loganathan解析解估算隧道开挖引起的土体自由位移场,第二阶段首先基于Winkler地基模型,将自由土体位移施加于桩体并建立单桩位移控制方程,然后应用剪切位移法,考虑被动群桩的桩–桩相互影响,计算被动群桩的遮拦效应,最后得到隧道开挖对被动群桩的影响。
3) central obscuration
中心遮拦
1.
The reference plate in Mirau phase-shifting interferometry is a central obscuration in the beam.
Mirau相移干涉中的参考面对光路造成了中心遮拦。
2.
Annular Zernike polynomials have advantages in wavefront fitting with central obscuration.
在中心遮拦光学元件的波面拟合中,环域Zernike多项式具有优良的性能。
4) obscuration ratio
遮拦比
1.
In order to improve the laser transmitting power of laser detection system,assuming exit laser is a fundamental mode Gaussian beam,the effect of the obscuration ratio of Cassegrain telescope and the waist radius of the incident light beam on the light power transmission was analyzed based on the transformation and transmission characteristics of Gaussian beam passing through the optical system.
为了提高激光探测系统激光的发射功率,在出射激光为基模的高斯光束的光路设计中,根据高斯光束经过光学系统的变换与传输特性,分析了系统采用Cassegrain望远镜时,其遮拦比以及入射光束束腰半径对光功率透过率的影响。
2.
The conditions of the absence of aberrations are analyzed based on the third-order aberration theory and the influence of obscuration ratio and the corrector s single lens power to the system performance is investigated.
根据像差理论分析了消像差的条件,研究了遮拦比和无光焦度校正板单透镜的光焦度对系统性能的影响,并给出了遮拦比和无光焦度校正板单透镜的光焦度的最佳选择范围。
5) obstruct region
遮拦区域
6) obstruction ratio
遮拦比
1.
Numerical calculation results show the dependence of the power (energy) focusability on the obstruction ratio, truncation parameter, the amplitude modulation and phase fluctuation parameters.
数值计算结果表明，功率（能量）集中度与光阑的遮拦比、光束截断参数以及振幅调制和位要畸变参数等有关。
补充资料：遮拦
1.亦作"遮阑"。亦作"遮兰"。亦作"遮栏"。 2.犹阻拦。 3.阻挡;抵御。 4.遮蔽;遮盖。 5.遮护;庇护。 6.排遣。 7.遮蔽物;拦阻物。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条