英语词汇“direct ray theory”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	direct ray theory
释义	direct ray theory 直射线理论
随便看	coal explorationtype coal exploration type coal explore coal-exploring methods coal expo coal export coal exportation coal exposure productivity coal extraction coal extracts coalex-type dynamite coalface coal field fire extinguishing coalfield fires coal face coal-face coal face abutment pressure coal face configuration coalfaceenvironment coal face flooding coal-face flooding coal faceis coal face machinery coalfaces coal-faces