catalysts

• Mechanical test results must be evaluated in conjunction with catalyst activity, selectivity, and stability data .
  必须将机械测试结果和催化剂活性、选择性和稳定性数据联系起来进行综合评价。
• The high production rate of modern reformers is due not only to good design but also to active and rugged catalyst .
  生产率高的现代化转化炉不只是由于好的设计而且在于高活性和高强度的催化剂。
• Catalyst returning to the reactor may not be completely regenerated because of insufficient time in the regenerator .
  因为催化剂在再生器中停留时间不足，故返回反应器的催化剂可能未被完全再生。
• The high production rate of modern reformers is due not only to good design but also to active and rugged catalyst .
  现代化转化炉产生高生产率，不仅因为设计良好，而且在于具有高活性和高强度的催化剂。
• Under more strenuous conditions of temperature or catalyst the silanes bond chemically with the surface through siloxane linkage .
  在加温或催化剂的十分剧烈的条件下，硅烷通过硅氧烷键和表面化学结合起来。