廖什克恼火地挥手让他离开。Leshka waved him away with a show of irritation.他正挥手以引起他们的注意。He was waving his arms to draw their attention.埃米举起胳膊挥挥手。“再见,”她喊道。Amy lifted her arm to wave. "Goodbye," she called....
日蒸发率是评价高真空多层绝热杜瓦保冷性能最重要的技术参数.Daily evaporation rate is an important technology parameter to evaluate the heat - insulating property of cryogenic dewar....