分面浏览：发表日期 |
| 当前检索式 | ((ALL：covalent bonds)) |
| 限定条件 | 无 |
| 2024 1 | 2022 7 | 2021 14 |
| 2020 22 | 2019 31 | 2018 52 |
| 2017 63 | 2016 34 | 2015 63 |
| 2014 37 | 2013 37 | 2012 22 |
| 2011 32 | 2010 69 | 2009 25 |
| 2008 14 | 2007 19 | 2006 13 |
| 2005 19 | 2004 19 | 2003 12 |
| 2002 12 | 2001 7 | 2000 4 |
| 1999 8 | 1998 8 | 1997 5 |
| 1996 1 | 1995 1 | 1992 2 |
| 1991 1 | 1990 1 | 1987 1 |
| 1986 1 |
