天气预报15天查询> 其他> 如何区分普通河蟹与大闸蟹

如何区分普通河蟹与大闸蟹

更新时间: 2020-09-16 00:00:00     

河蟹也叫"螃蟹"和"毛蟹",头部和胸部结合而成的头胸甲呈方圆形,质地坚硬。身体前端长着一对眼,侧面具有两对十分坚锐的蟹齿。螃蟹最前端的一对附肢叫螯足,表面长满绒毛;螯足之后有4对步足,侧扁而较长;腹肢已退化。河蟹的雌雄可从它的腹部辨别:雌性腹部呈圆形,雄性腹部为三角形。

大闸蟹的外形特征是:青背、白肚、全爪、黄毛、体壮。青背:蟹背为蟹壳青,青得发亮。烧熟后,显纯红,鲜艳,它不同于其他湖区螃蟹的灰色,泥土色重。

关键词: 如何 区分 普通 河蟹 闸蟹

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-3233495/ | 耗时:0.6496 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=3233495 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3233495 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3233495 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1066925,1070058,1322722,1072625,1128441,297732,136721,320747,432157,1125528,1071243,1299789,2174351,220802,1072192,1935392,1130874,336992,1102206,1863530,1859160,1087805,1368739,1955756,224721,267829,1088624,1603532,1132577,499348) ORDER BY field (ArticleID,1066925,1070058,1322722,1072625,1128441,297732,136721,320747,432157,1125528,1071243,1299789,2174351,220802,1072192,1935392,1130874,336992,1102206,1863530,1859160,1087805,1368739,1955756,224721,267829,1088624,1603532,1132577,499348)