Tomic in that they are either fully executed or not at all ,因为它们要么完全执行,要么根本不执行。
2.
This paper introduces to determine elements in lubricating oils by inductively coupled plasmaa tomic emission spectrometry ( icp - aes ) , this instrumnet has clipping and exact characteristic for inspection of lubricating oils 摘要本文介绍用电感耦合等离子发射光谱仪( icp - aes )测定润滑油中的元素含量,对润滑油的使用监测具有快速而准确的特点。