The paper improves the design of photography system of capturing cross - section image and guarantees the steady capturing of image 對(duì)采集斷層圖象的攝像系統(tǒng)進(jìn)行了改良設(shè)計(jì),保證了圖象的穩(wěn)定采集。
Zirconium alloys are employed extensively in light water cooled reactors ( lwr ) as the cladding materials of fuel elements and other structural materials because of the low capture cross - section for thermal neutrons , good resistance to water - side corrosion at elevated temperature , adequate mechanical properties and high thermal conductivity 由于鋯的熱中子吸收截面小,并具有優(yōu)異的耐高溫水腐蝕性能、良好的綜合力學(xué)性能和理想的熱導(dǎo)率,因此,鋯合金被用作核電站水冷動(dòng)力堆核燃料元件的包殼材料和堆芯的其它結(jié)構(gòu)材料。