| 1. | Galileo rolled small metal balls down the incline .
伽利略让小金属球从斜面滚下。 |
| 2. | 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。 |
| 3. | 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。 |
| 4. | Metal ball valves - flanged and butt - welding ends
对焊和法兰端金属球阀 |
| 5. | Metal ball valves for petroleum , petrochemical and allied industries
石油石化和相关工业用金属球阀 |
| 6. | Metal ball valves for the petroleum , petrochemical and allied industries
石油石油化工和相关工业用金属球阀 |
| 7. | It ' s a metal ball , sir
是一个金属球，大人 |
| 8. | The spheres had been magnetized and attracted or repelled each other all the time
金属球经过磁化，不停地相互吸引或排斥。 |
| 9. | Lined up against the wall , there were long thin wires attached to metal spheres
靠墙处排着许多又细又长的线，接在金属球上。 |
| 10. | The spheres had been magnetized and attracted or repelled each other all the time
金属球经过磁化，互相之间不停地相互吸引或相互排斥。 |
