the effect of the electrified triboelectrification rod with electricity is still obvious after 300 seconds to be tested by the electroscope.
带电后的摩擦带电棒,再过300秒才用验电器检验其带电情况,效果依然明显。
the material of the triboelectrification rod is not limited to glass, or hard rubber, which can be made by metal or other material.
摩擦带电棒的材料不限于玻璃、硬橡胶,可用金属或其它材料做成。
the utility model relates to a triboelectrification rod with insulation lever, which provides an improved experimental instrument with triboelectrification.