“feed-control valve”的概念、定义、翻译、参考文献-科学参考

单词	feed-control valve
释义	feed-control valve [`fēd kǝn´trōl ´valv] ^{MECHANICAL ENGINEERING} A small valve, usually a needle valve, on the outlet of the hydraulic-feed cylinder on the swivel head of a diamond drill, used to control minutely the speed of the hydraulic piston travel and hence the rate at which the bit is made to penetrate the rock.
随便看	outlet ventilator outlier outline font outline map outline processor out-of-line coding out of phase out-of-service jack outpatient out-plant system output output area output block output-bound computer output bus driver output capacitance output class output device output equipment output gap output impedance output indicator output-limited output link output magazine

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