英语词汇“middle vacuum”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	middle vacuum
释义	middle vacuum 基本例句空中 Sound can not be conveyed in a vacuum.真空中声音无法传播。 Sealed inside a glass tube, a stream of electrons carried a current through a vacuum between electrodes.在一个密封的玻璃管内，带电的电子流在两电极间的真空中流动。
随便看	Extraction of wild buckwheat Extraction of wisdom tooth extraction of Zengcheng extraction oil extraction oi the contour line extraction opening extraction operatatior extraction operation extraction order extraction orthodontic treatment Extraction orthogonal test extraction-oxidation extraction packed column extraction parachute extraction parameters extraction part Extraction parts extraction pattern extraction percentage extraction period extraction photometric method extraction-photometric method Extraction-photometry extraction pipe extraction plant