张钰哲研究小行星的光变曲线和旋转、CZ仙后座变星以及哈雷彗星轨道的变化。
He studied the light curves of asteroids and thus their rotation, and also studied the variable star CZ Cassiopeiae, and the evolution of the orbit of Comet Halley.
探索活动星系的快速光变，是研究星系中心致密核结构及辐射机制的强有力手段。
Searche for rapid variability in the flux from active galaxies has the Promise of being a very powerful tool for understanding their emission mechanisms.
光变是活动星系核（AGN）的共同特征， 光变规律的研究已成为人类探索活动星系核物理的有力手段。
Optical variability is a common property of AGNs, Which provides a potentially powerful tool to probe the physics of AGNs.
在造父变星的一个光变周期内，恒星外层的电离气体是相对不透明的，因此会吸收恒星的辐射而升温，并开始向外膨胀。
At the dimmest part of a Cepheid's cycle, the ionized gas in the outer layers of the star is opaque, and so is heated by the star's radiation, and due to the increased temperature, begins to expand.
研制了一种新型数字化衍射光变图像的存储系统。
A novel digital information storage system for diffraction optical variable image devices is proposed.
活动星系核的光学谱变化与光变时标之间是否存在某种关系？
AGN changes in the optical spectra and light changes between standard Is there some relationship?
变星的一种，它的固有光度和它的光变周期有着紧密的联系。
A type of variable star whose period of variation is tightly related to its intrinsic luminosity.
结果表明：这两种模型是定性解释活动星系核光学波段光变的合理模型。
The results show that these two models can qualitatively explain the AGN variability in the optical band.
脉动相的光变曲线可以用一个温度正逐渐下降的辐射区域的热轫致辐射拟合。
The time profile in pulsating phase can be fitted by bremsstrahlung radiation of th…
包含光变颜料的油墨组合物，该组合物的用途，光变颜料和处理该颜料的方法。
Ink composition comprising optically variable pigments, use of the composition, optically variable pigment and method of treating said pigment.
这些讨论表明，活动星系核的短时标光变特征对厚吸积盘模型提供了强有力的支持。
The conclusion is: the short term variability behavior provides a strong support to the thick accretion disk model of AGN.
从宇宙演化的角度来看，类星体的光变随着宇宙时愈演愈烈，最后与活动星系相接。
From the viewpoint of cosmological evolution it seems that the optical variation of QSOs becomes more violent with the cosmological time, and finally it connects itself with that of active galaxies.
造父变星是可靠的宇宙距离(测量)里程碑，其完整的一个光变周期直接反映了星体的本质光亮度。
Cepheids are reliable cosmic distance mileposts. The interval it takes for the Cepheid to complete one pulsation is a direct indication of the stars'; s intrinsic brightness.
为了防伪起见，新的特色包括一个弗兰克林的水印和光变油墨，从不同的角度可以看到不同的颜色。
In an attempt to deter counterfeiters, new features included a watermark of Franklin and optically variable ink that changes color when viewed at different angles.
本文对于非均质岩体工程的变弹模光弹性实验计算有着一定的参考意义。
It has some reference meaning for the Photoelastic experiment and Calculation of Changeable elastic modulus in the inhomogeneous rock masses engineering.
本文研究了光强度对油炸方便面氧化劣变的影响，并初步讨论了光质量的作用。
The paper makes a probe into the effect of light strength on oxidation deterioration of instant noodles and the part which the quality of light plays.
相位跃变是受激背散射光与入射激光间的增益与损耗调制的结果。
In the process of compression the author observed phase jump, which is the modulating result of gain and loss between the Stokes light and incident light.
他脑后出现了一个白色的光环，然后越变越大，直到光包围了他整个身体。
A nimbus of white light appeared around his head, growing larger and more intense until it completely encompassed the monk's body.
利用光电检测技术，提出基于FPGA的瞬变光多事件探测系统预处理电路实现方案。
Using the photoelectric detection technique, the scheme of pretreating circuit in multi transient light events system based FPGA-tech is proposed.
成膜透明、光泽好、非常坚韧，耐磨耐刮擦性好，不回粘，而且有优秀的耐寒性，极优的耐光性和耐黄变。
The film is transparent, glossy, very flexible, abrasion-resisting and scratch-resisting, contains no after-tack, and is excellent in resisting cold, light and yellow stain.
变分有效折射率法是变分法（VM）和有效折射率法（EIM）的结合，它能够很精确地模拟光场分布情况；
The Variational-Effective index method is based on mixing the variational method(VM) and the effective index method(EIM), it can be used with very accuracy to simulate the field distribution.
过去100年来，天文学家特别注意一类称作“仙王座变光星”的恒星。
For 100 years astronomers have paid particular attention to a class of variable star known as the Cepheids.
成千的人宣称曾看到过球状闪电——那是一个白热的大致球状的光球，通常在雷暴雨中出现——但是对于球状闪电的细节部分的描述却是千变万化。
Thousands of people claim to have seen ball-lightning—glowing, roughlyspherical balls of light, usually produced around the time of athunderstorm—but the details of these sightings vary enormously.
右下方黄色而致密的麦克尼尔星云十分引人注目，它是一个新发现的变光星云。
Yellowish and even more compact, the recently discovered, variable McNeil's Nebula is prominent in the scene below and right of center.
多年来，在银幕上实现光剑的技术一直在变。
The technique for realizing a lightsaber onscreen has varied throughout the years.
另一方面，基于脂肪族二异氰酸酯的材料以其独有的白色而著称，且其在紫外光、可见光和热条件下都不会变黄。
On the other hand, the materials based on aliphatic diisocyanates are famous for their unchanged whiteness and they will not change to yellow when irradiated with ultraviolet, visible light or heated.
光弹性模型中的力学蠕变，伴随着光学效应随时间的变化。
The mechanical creep in photoelastic models is accompanied by a variation with time of the optical effects.
研究了自变陡效应对色散缓变光纤中光脉冲的调制不稳定性的影响。
The effect of self steepening on the modulation instability of optical pulses in decreasing dispersion fibers is investigated.
设计了一种集充电和逆变功能于一体的大功率光伏逆变电源系统。
A kind of high power photovoltaic inverter power system, containing charge and inversion function is designed.
当两相干光附加一按固定频率变化的相位差时，其干涉条纹的光强将随之交变，即为相位调制干涉。
In addition to alternating phase difference between two aims of interferometer, the intensity of light of the interference fringes will vary in the same frequency, which is called as phase modulation.
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