An instrument that measures the rotation speed of a shaft or disk, as in a motor or other machine.

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Anonymous said...

ooo pikir taco mknan from the title :p
nevertheless very informative haha

Alif said...

hahaha! panat :D aku pun nda tau psal apa ku msuk kan definition nya jua nyehhehe! someone might view it one day x for the assignment lols

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