The firm is about to complete a pilot production line that will print lithium-ion batteries onto sheets of metal or plastic, like printing a newspaper.
其即将完成一条试点生产线，能像打印报纸般在金属或塑料纸上打印锂离子电池。
2
The ion disappeared in 2007, and the entire Saturn line followed it into oblivion two years later.
离子轿车2007年就淡出了市场，两年后，整个土星产品线也随之湮灭。
3
If I can prove that it is greater than one that means that the line is more stable than the set of ion pairs.