His was a utopian vision of nature in its purest form.他对大自然怀有一种极为纯粹的乌托邦式看法。You're bigtime elegant , Francesca, in the purest sense of that word. "你是绝代美人, 弗朗西丝卡, 是从这个词的最纯正的意义上说. ”EGS is undoubtedly one of the purest ...
抽气泵的排气管应该导向室外空旷处或导向一座通风橱.The pump exhaust should lead to the open air or a fume hood.设计了一套硅片专用真空夹紧装置,包括夹紧装置和微型无油真空抽气泵.A vacuum clamp equipment used for holding Si wafer is designed in this paper....