optical sign 旋光性符号
optical warning sign 灯光警告信号
Optical Sign to Noise Ratio 光信噪比
optical sign substitution 光学符号代换
And found that the rod moved upward and to the side—a sign of optical lift.
发现这个长条物体向上移动并移向旁边，这标志着光的上升力。
All the physical properties should be identical except for the optical rotations of the two isomers (enantiomers), which are of opposite sign.
这两个异构体(对映体)除了旋光度有相反的符号之外，其他所有的物理性质都应该是完全相同的。
Optical Formula Recognition is not only the sign of formula recognition, but also include the extraction of the formula, the record of two dimension structure of the formula and so on.
数学公式的识别不仅只是公式中符号的识别，其还包括了公式抽取，公式二维结构的记录等方面的研究。
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