本发明涉及一种真空除尘器的改良，以能够减少穿过真空除尘器的空气通道中的气流损耗。
The invention relates to improvements in vacuum cleaners in order to reduce air flow losses in air pas - sages through a vacuum cleaner.
本发明涉及一种真空除尘器的改良，以能够减少穿过真空除尘器的空气通道中的气流损耗。
The invention relates to improvements in vacuum cleaners in order to reduce air flow losses in air pas - sages through a vacuum cleaner.
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