“feed ratio”的概念、定义、翻译、参考文献-科学参考

单词	feed ratio
释义	feed ratio [`fēd ´rā·shō] ^{MECHANICAL ENGINEERING} The number of revolutions a drill stem and bit must turn to advance the drill bit 1 inch when the stem is attached to and rotated by a screw- or gear-feed type of drill swivel head with a particular pair of the set of gears engaged. Also known as feed speed.
随便看	ptygmatic fold p-type conductivity p-type crystal rectifier p+-type semiconductor p-type semiconductor p-type silicon Pu puberty puberulic acid pubic arch pubic crest pubic height pubic symphysis pubis public address system public area public communications service public correspondence public data public health public-key algorithm public network public pack public radio communications services public-safety frequency bands

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