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.

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。

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Distribution of light intensity, transmittance of fabrics, speed of rotation, temperature and humidity have influence on the test precision.

光强分布、织物透光、旋转速度、温湿度等都会影响测试精度。

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Based on characteristics of optical polarizing, Malus law, and Faraday optical rotation, a long-range displacement detector is realized by same light source and double light route.

基于光的偏振特性、马吕斯定理和法拉第旋光效应，采用同光源双光路检测，实现了大量程直线位移的测量。

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With the H2O starting rotation of Roy Halliday, Roy Oswalt and Cole Hamels, they are light years ahead of where they were last year when they opted to start aging Pedro Martinez twice.

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