双频率、双振幅。
本文通过分析，建立出双偏心机构传动振动体时的振幅计算公式。
The calculating equation of amplitude for the double eccentric driving mechanism is established by analysis.
本文介绍了双稳液晶电光调制器的超线性特性以及它在制作各类特殊振幅光栅和半色调屏上的应用。
The ultralinear characteristics of a bistable liquid crystal electro-optic modulator and the use of it for making various special amplitude gratings and the halftone screen are introduced.
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