“foreshaft sinking”的概念、定义、翻译、参考文献-科学参考

单词	foreshaft sinking
释义	foreshaft sinking [`fȯr´shaft ´siŋk·iŋ] ^{MINING ENGINEERING} The first 150 feet (46 meters) of shaft sinking from the surface; the plant and services for the main shaft are installed during this step.
随便看	meter-kilogram-second system meter oil meter prover meter-proving tank compleximetric titration complex impedance complexing complexing agent complex instruction set computer complex integer complex ion complexity complex low complex notation complex number complexometric titration complex permeability complex permittivity complex plane complex potential complex reflector complex relative attenuation complex salt complex sphere complex target

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