A microprocessor ensures the belts are always on time, while the polycarbonate crystal display protects the mechanics from anything short of a.50-caliber bullet.
表芯里面的微处理器保证了传送带运行精准，聚碳酸酯水晶保护着电机免受短于50口径的子弹袭击。
2
Crystal glasses are not onlg beautiful but also practical . They are better than ordinary glasses in optics mechanics and health care .
水晶眼镜是装饰性与实用性相结合的产品，在光学、力学和保健等方面优于普通玻璃眼镜。
3
A microprocessor ensures the belts are always on time, while the polycarbonate crystal display protects the mechanics from anything short of a. 50-caliber bullet.