無酸素銅ダクトの初期排気特性; 無酸素銅ダクトの初期排気特性; Initial Pumping Characteristics of Oxygen Free Copper Duct. Yamamoto, Yoshiki ; Nagai, Yasuchika ; Saito, Yoshio ; Matsuda, Namio ; Yamamoto, Tadashi Abstract Publication: Journal of the Vacuum Society of Japan Pub Date: 1993 DOI: 10.3131/jvsj.36.249 Bibcode: 1993JVSJ...36..249Y