例句與造句

1. The specifications give details of the chemistry , mechanical properties , heat treatment , melting and processing details , hardness limits and nace instructions for the material in question
   規(guī)范包括化學(xué)成分，機(jī)械性能，熱處理，冶煉加工，硬度范圍和nace材料規(guī)范等詳細(xì)信息。
2. It's difficult to find hardness limit in a sentence. 用hardness limit造句挺難的