在纳米检测与计量技术中，长度标准的研制具有重要的现实意义。

The nanoscale length standards are very important to nanometer measurements and metrology.

youdao

在纳米检测与计量技术中，长度标准的研制具有重要的现实意义。

The nanoscale length standards are very important to nanometer measurements and metrology.

youdao