vacua /'vækjuә/ 📖 中文释义 n. 真空, 真空状态, 真空度, 空洞, 真空装置, 真空吸尘器, 空虚 🔗 释义中的汉语词 真空空洞空虚 📘 English Definition(英文释义) n the absence of mattern an empty area or spacen a region that is devoid of mattern an electrical home appliance that cleans by suction ← vaction variable V 字母词表 vacua possessio →