Upsetting of a circular cylinder between plates is studied by optical plasticity method.
采用光塑法对圆柱体的平板间镦粗进行了定量研究；
It is proved by experiment that using the optical device may be used instead of the fractional wave plates of classical optics.
实验证明，采用本文设计的调节系统完全可以取代经典波片，从而实现单模光纤中传输光束偏振态的自调效果。
The growth and disappearance of induced martensite plates under bending stress have been also directly observed by the optical microscope.
用光学显微镜直接观察了合金在弯曲时应力诱发马氏体的增长和消失过程。
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