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ALL IN ONE , ONE FOR ALL , MAKE HONG KONG CLEAN BETTER EVERMORE - 王炫超老師

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用佢量度和安裝成品之用

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電子部分不是我們的強項，有了你，我地才可以做到電子部分！

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不同類型的傳感器也想要，要試下哪一個岩用。

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