The study shows that the soil erosion of this region is getting worse 经评估,该区水土流失正处于青年期,潜在不稳定性。
2.
Test method for determination of potential instability of middle distillate fuels caused by the presence of phenalenes and phenalenones . rapid method by portable spectrophotometer Phenalenes和phenalenones产生的中间馏出燃料潜在不稳定性的测定方法.便携式光谱仪快速测量法
3.
Standard test method for determination of potential instability of middle distillate fuels caused by the presence of phenalenes and phenalenones rapid method by portable spectrophotometer 测定由于phenalenes和phenalenones存在而产生的中间馏出燃料的潜在不稳定性的标准试验方法