Database error: Invalid SQL: select count(id) from pwn_comment where catid='1' and rid='325'
MySQL Error: 145 (Table '.\a0907135953\pwn_comment' is marked as crashed and should be repaired)
#0 dbbase_sql->halt(Invalid SQL: select count(id) from pwn_comment where catid='1' and rid='325') called at [D:\wwwroot\test2037\web\includes\db.inc.php:73] #1 dbbase_sql->query(select count(id) from {P}_comment where catid='1' and rid='325') called at [D:\wwwroot\test2037\web\news\module\NewsContent.php:163] #2 NewsContent() called at [D:\wwwroot\test2037\web\includes\common.inc.php:518] #3 printpage() called at [D:\wwwroot\test2037\web\news\html\index.php:15] Database error: Invalid SQL: select sum(pj1) from pwn_comment where catid='1' and rid='325'
MySQL Error: 145 (Table '.\a0907135953\pwn_comment' is marked as crashed and should be repaired)
#0 dbbase_sql->halt(Invalid SQL: select sum(pj1) from pwn_comment where catid='1' and rid='325') called at [D:\wwwroot\test2037\web\includes\db.inc.php:73] #1 dbbase_sql->query(select sum(pj1) from {P}_comment where catid='1' and rid='325') called at [D:\wwwroot\test2037\web\news\module\NewsContent.php:169] #2 NewsContent() called at [D:\wwwroot\test2037\web\includes\common.inc.php:518] #3 printpage() called at [D:\wwwroot\test2037\web\news\html\index.php:15] Database error: Invalid SQL: select * from pwn_comment where iffb='1' and catid='1' and pid='0' and rid='325' order by dtime desc limit 0,5
MySQL Error: 145 (Table '.\a0907135953\pwn_comment' is marked as crashed and should be repaired)
#0 dbbase_sql->halt(Invalid SQL: select * from pwn_comment where iffb='1' and catid='1' and pid='0' and rid='325' order by dtime desc limit 0,5) called at [D:\wwwroot\test2037\web\includes\db.inc.php:73] #1 dbbase_sql->query(select * from {P}_comment where iffb='1' and catid='1' and pid='0' and rid='325' order by dtime desc limit 0,5) called at [D:\wwwroot\test2037\web\news\module\NewsComment.php:48] #2 NewsComment() called at [D:\wwwroot\test2037\web\includes\common.inc.php:518] #3 printpage() called at [D:\wwwroot\test2037\web\news\html\index.php:15] 种子净度测定-天天正品,天天折扣!
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种子净度测定
作者:管理员    发布于:2014-06-05 08:39:21    文字:【】【】【
  种子净度是指纯净种子的质量与供检种子质员的百分比,表尔种子的清洁干
净程度。净度是种子品质的重要指标,是种子分级的主要指标之一,是计算播种量
的必要条件,净度的高低既影响种子品质义影响种子寿命,种子净度越高,说明品
质越好。
    净度测定方法是先用分样器或四分法出送检样品中进行分样,以取得净度测
定所需的重量,除大粒种子为3Do一500粒外,义他种子要求在净度测定后能有
2500一3000粒纯净种F。将称重后的测定样品放在玻璃板上,按纯净种子、废种
子和夹杂物三部分分别称重。当所测样品纯净种子、废种子和夹杂物之和与原测
定样uDu重量之差在允许范围之内时,即可计算净度,否则重做。计算公式:
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