The principle of photoswitch: the projector will ju dge and react on the basis of light beam from the projector which is ...
摘要: 光电作原理 光电的原理是根据投光器发出的光束,被 体阻断或部分反射,受光器最终据此作出判 断反应.
The principle of photoswitch: the projector will ju dge and react on the basis of light beam from the projector which is ...
摘要: 光电作原理 光电的原理是根据投光器发出的光束,被 体阻断或部分反射,受光器最终据此作出判 断反应.
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