“pneumatic lighting”的概念、定义、翻译、参考文献-科学参考

单词	pneumatic lighting
释义	pneumatic lighting [nu̇`mad·ik `līd·iŋ] ^{MINING ENGINEERING} Lighting of underground chambers by a compressed-air turbomotor driving a small dynamo.
随便看	back putty back radiation back rake back range back reef back-reflection photography back resistance backrope back-run process back rush backs backsaw backsawing backscatter gage backscattering backscattering thickness gage backscatter radar backset back-set bed backshore backshore beach backshore terrace back shot backsight backsight method

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