单词	圆柱滚子
释义	圆柱滚子cylindrical roller
随便看	optical data-link (odl) optical data links optical data networking optical data processing optical data processing concept optical data processing，odp optical data processor optical data processor--odp optical data processor，odp optical data receiver optical data recognition optical data transmission optical data transmission channel optical data transmission system optical data transmission system，odts optical deflector optical deflectors optical delay optical delay line optical delay lines optical delay line，odl optical demodulation optical demultiplexer optical demultiplexing optical demux