分面浏览：发表日期 |
| 当前检索式 | ((ALL：purification technology)) |
| 限定条件 | 无 |
| 2024 2 | 2023 19 | 2022 37 |
| 2021 86 | 2020 107 | 2019 288 |
| 2018 218 | 2017 258 | 2016 211 |
| 2015 243 | 2014 217 | 2013 224 |
| 2012 218 | 2011 144 | 2010 212 |
| 2009 100 | 2008 117 | 2007 90 |
| 2006 88 | 2005 51 | 2004 58 |
| 2003 27 | 2002 17 | 2001 23 |
| 2000 19 | 1999 10 | 1998 6 |
| 1997 2 | 1995 2 | 1994 2 |
| 1993 2 | 1992 1 | 1991 2 |
| 1988 1 |
