对于啁啾量相同的脉冲，脉冲宽度越小或模指数越大其奇异性位置离光束中心越近。
The singularity is located nearer to the central axis for the pulses with higher order transverse modes and shorter pulse duration.
为了将无衍射光应用于大景深成像系统中，分析了无衍射光束中心光斑的变化规律。
In the purpose of using non-diffracting beams to extending the depth-of-field of optical imaging system, the variation rules of the central spot of non-diffracting beams are investigated.
研究表明，光船高速自旋产生的陀螺效应使光船姿态保持稳定，侧力和气动力阻尼的共同作用使光船具有稳定于光束中心的能力。
The results show that lightcraft's attitude stabilization is achieved by gyroscopic effect, and that due to the side force and the aerodynamic damp, lightcraft has the ability to ride a laser beam.
显示的单光束在作为纪念碑内唯一的自然光源，通过建筑中心渗入内部空间。
A single shaft of daylight shown permeating through the centre of the building is intended as the only natural light source within the monument.
绕着光涡旋的黑暗中心，光束携带的能量流就像螺旋梯，沿着顺时针或者逆时针方向流动。
Around the dark core of an optical vortex, the energy flow carried by the light beam is like a spiral staircase, flowing in a clockwise or counterclockwise direction.
保持背部和颈部形成一条直线这样光束就能通过脊柱中心线。
Keep your back and neck aligned so the light finds its way through the core of your spinal column.
如果光学头在轨道上，主激光束将处于轨道中心，两个副光束处于轨道之间。
If the optical head is on track, then the primary beam will be centered on a track (with pits and bumps) and the two secondary beams will be centered on land.
与平面波相比，高斯光束入射下的焦点处中心场强较小，但衍射效率较高。
Compared with the plane wave incidence, when the Gaussian beam is incident, the center electric magnitude is smaller, but the diffraction efficiency is higher.
研制了一种在以激光束为中心轴的圆周方向均匀对称分布四个具有同轴汇聚气的双层送粉管的送粉喷嘴。
Developed a feeding nozzle which have four double-feeding pipes with co-axial shaping gas distributes on circle orientation of laser beam with uniformity and symmetry.
建筑物的灯光看起来跟星星似的。而世贸中心废墟零点地带的纪念光束比这些建筑物更有迷惑性。
The buildings resembled stars. Outshining them all was the Tribute in Light above Ground Zero.
提出了一种十字形光束扫描方法将激光光束调节到望远镜视场的中心位置。
Then a cross scanning of beam is presented to adjust the laser beam until it falls in the center of the telescope field of view.
首次将远场激光束的空间分布、脉冲波形和中心能量测试纳入到一个体系中。
By the system, far-field beams space distribution, pulse waveform and center energy information can be attained simultaneity for the first time.
研究了稳态情况下一维宽光束在有偏压双光子中心对称光折变晶体中的调制不稳定性。
The modulational instability of one-dimensional broad optical beams in biased two-photon centrosymmetric photorefractive crystals under steady-state conditions has been investigated.
研究了稳态情况下一维宽光束在有偏压双光子中心对称光折变晶体中的调制不稳定性。
The modulational instability of one-dimensional broad optical beams in biased two-photon centrosymmetric photorefractive crystals under steady-state conditions has been investigated.
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