devacuation
词形变化
devacuations
复数
devacuations
释义与例句
n.
-
1.
Loss or removal of vacuum (“reduction of pressure below that of the atmosphere”).
可数 不可数1963, B. W. Spear, D. E. Powell, Kimcode, a method for controlling devacuations of television tubes, IEEE Trans Broadcast Telev. Receivers, 1963, 9, 25
1981, L. Brandsma, H. D. Verkruijsse, Synthesis of Acetylenes, Allenes, and Cumulenes: A Laboratory Manual, Elsevier Science Limited After removal of the solvents and after distillation in an oil-pump vacuum nitrogen must be used for the devacuation.
词源
From de- + vacuation.
来源:wiktionary