“roof stringer”的概念、定义、翻译、参考文献-科学参考

单词	roof stringer
释义	roof stringer [`rüf ´striŋ·ǝr] ^{MINING ENGINEERING} A lagging bar running parallel with the working place above the header in a weak or scaly top in narrow rooms or entries which have short life.
随便看	Lorentz force Lorentz-force density Lorentz four-vector Lorentz frame Lorentz gage Lorentz gas Lorentz group Lorentz-Heaviside system Lorentz invariance Lorentz line-splitting theory Lorentz local field Lorentz-Lorenz equation Lorentz-Lorenz molar refraction Lorentz matrix Lorentz number Lorentz polarization factor Lorentz relation Lorentz theory of light sources Lorentz transformation Lorentz unit infectious disease infectious drug resistance infectious endocarditis infectious hepatitis infectious laryngotracheitis

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