金属球 meaning in English

metal globule
metallic ball

Galileo rolled small metal balls down the incline .
伽利略让小金属球从斜面滚下。
He produced an electric spark across a gap between two metal balls by applying an electric current to them .
他把电流接通到两个金属球上而在其间的间隙处产生火花。
These objects , however , were different . lined up against the wall , there were long thin wires attached to metal spheres .
然而，这些展览品不同。一根根细长的金属线靠墙排列着，上面系有金属球。
Metal ball valves - flanged and butt - welding ends
对焊和法兰端金属球阀
Metal ball valves for petroleum , petrochemical and allied industries
石油石化和相关工业用金属球阀

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