基本解釋n.α電離真空規(guī)(α射線管)同根派生 alphatron相關詞英漢例句alphatron dissociation pressure gage α粒子電離壓強計alphatron gage α射線測量計alphatron gauge 管真空規(guī)alphatron vacuum gage 真空計alphatron更多例句