分析了振弦栅除尘机理，给出了影响振弦栅除尘效率的因素。
This paper has analyzes the mechanism for the vibrating grid filtration.
在弦振动“驻波”实验中，对于起振端是波节还是波腹，存在不同的认识。
There are different viewpoints about the wave source in the experiment of vibration of string.
在弦振动“驻波”实验中，对于起振端是波节还是波腹，存在不同的认识。
There are different viewpoints about the wave source in the experiment of vibration of string.
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