low potassium造句

• The factors which influence the mechanical strength of the catalyst for ethylbenzene dehydrogenation to styrene with low potassium were discussed
  摘要考察了各种因素对低钾乙苯脱氢制苯乙烯催化剂机械强度的影响。
• The author suggests that for those kinds of samples like ophiolite which formed in the underwater environment and had very low potassium content, it should be better to determine their formation age by the sm-nd method as it is less sensitive to alteration . however, the step heating 40ar-39ar spectra could often reflect the influence of later geological events on isotope system
  认为对蛇绿岩这类形成于水下环境，含钾极低的样品，其岩体的形成年龄宜选用对蚀变影响反应不明显的sm-nd方法测定；但阶段升温~(