Introducedvariety and character of negative native aluminum foil using electrolyze capacitor, and expounded quality control keys for producing process, too.
介绍了铝电解电容器负极用素铝箔的种类及其特征，阐述了其加工制造过程中的质量控制要素。
2
In 1997 Monsanto introduced a variety of corn resistant to various pests.
Monsanto公司于1997年推出的玉米品种抗多种害虫。
3
Since then, many models have been introduced with a variety of different options.