许多电子产品都是锁着的，为确定失主带来困难。
Also, many electronic devices are locked, making it difficult to determine who owns them.
许多电子产品的搬运距离如果超过500公里，其减少污染的功效与交通运输污染相抵消，在一些情况下甚至会增加对环境的破坏。
For many of the electronic items, if one had to travel further than 500 km, the transportation pollutants washed out and, in some cases, created more harm to the environment.
表面安装技术在许多电子产品的生产制造中已被大量采用，本文就表面安装PC B设计时需考虑的一些制造工艺性问题进行了阐述。
Surface Mount technology is extensively applied in the assembly of electronic components and PCBs. The article illustrates some of the concerns in SMT processing technology on PCB designs.
应用推荐