音標 ['vækjuəm]
n. 名詞 (pl. vacuums, vac-ua )1. 真空;空處,空虛,空白。
2. 〈美口〉吸塵器(= vacuum cleaner)。
vi. 不及物動詞 ,vt. 及物動詞 〈美口〉1. 用吸塵器掃除。
2. 用真空乾燥機乾燥。
adj. 形容詞 1. 真空的。
2. 用以產生真空的。
3. 利用真空的。
vt. 及物動詞 -ize 1. 在…內造成真空。
2. 用真空裝置打掃[乾燥]。
3. 真空包裝。


    1. Nature is abhorrent of vacuum

    2. Now its main farm products for demand korea agorae are vacuum - packed vegetable, totally more than 50 varieties, included chilli, thomson kudzu, chinese chive flower, peas, arrowhead, fresh mushroom, fresh lily, pomelo, orange, and so on

    3. It is used for pressure and vacuum of ammoniac liquid and gas as well as of zhe madia which can ' t corrode carbon steel, stainless steel and solders like tin and lead

    4. According to the frequently used methods of extraction and isolation of natural products from organic body, the freeze - dried ascidian tunica was exhaustively extracted with 100 % chloroform then the combined extracts were filtered and the solvent was separately concentrated under vacuum to yield a dark - brown gum

    5. In the regions of astrodome physics, solid physics, photochemistry and medicine, measurement and calibration of spectral irradiance of ultraviolet and vacuum ultra - violet have become more and more important research means and instrument