| ²é¿´: 277 | »Ø¸´: 3 | |
| ¡¾½±Àø¡¿ ±¾Ìû±»ÆÀ¼Û3´Î£¬×÷Õß¹âͷ̽³¤Ôö¼Ó½ð±Ò 2.5 ¸ö | |
| µ±Ç°Ö÷ÌâÒѾ´æµµ¡£ | |
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |
[×ÊÔ´]
¡¾·ÖÏí¡¿Soil Survey Manual
|
|
|
|
|
|
3Â¥2009-05-04 16:07:03
|
|
| ²é¿´È«²¿ 4 ¸ö»Ø´ð | |
|
2Â¥2009-05-04 14:29:07
|
|














»Ø¸´´ËÂ¥