The drilling head rotational speed can adjust, the drill hole efficiency is very high, the hole position is accurate, and it is suitable for the construction glass and the furniture glass processing.

钻头转速可调，钻孔效率高，孔位准确，适用于建筑玻璃与家具玻璃的加工。

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Now, does education emphasize drilling information into the head of the student, or should it emphasize sort of creative or critical thinking?

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