n. 名詞 1. 空,空虛;真空;空間,空處。
2. 精神空虛,出神,茫然若失,發呆。
3. 無聊,無所事事。
4. 〈常 pl. 〉無聊事,無聊話。


    1. Vacuum foaming behaviour and test method of foaming vacuity of an impregnating resin

    2. Cases of chronic fatigue syndrome in dual vacuity pattern of spleen and kidney treated by pricking and cupping

    3. At present mostly investigation of real estate is about house and is vacuity on the market and location of commercial real estate

    4. Professor yang diagnosed yin and yang vacuity prostatitis, made him taken powder and capsules, the symptoms disappeared and illness was cured. the patient married beared a son the second year, for appreciation, he presented a silk banner wrote " modern huatuo, effect a miraculous cure and bring the dying back to life

    5. Much works has been distributed to the development of a vacuum system to simulate the outer space and a measurement system to test the arcjet performance. ignition experiments in various operational modes have been done with argon as propellant. macroscopical working parameters including thrust, mass flow rate, voltage, current, inlet pressure and vacuity are obtained by the test measurement system and actual performance parameters including specific impulse, thrust efficiency, ratio of thrust and power and ratio of power and mass flow are calculated