·2,447,543篇论文数据，部分数据来源于NoteExpress
FSO is also secure: the only way to intercept the signal is physically to intercept the beam.
FSO更是安全可靠：能够拦截信号的唯一方法是对光束的物理隔断。
youdao
应用推荐
模块上移
模块下移
不移动