天气预报15天查询> 其他> 如何鉴别天丝和真丝

如何鉴别天丝和真丝

更新时间: 2020-11-23 00:00:00     

通过燃烧的方法来鉴别,如果天丝纱线靠近火焰的时候,一旦燃烧就会产生卷曲,真丝燃烧之后留下黑色灰烬,用手一碾就会变成粉末。

关键词: 如何 鉴别 真丝

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-920603/ | 耗时:0.5393 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=920603 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=920603 LIMIT 0,1
select * from tbl_Articles_sphinx where id=920603 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1124013,1066925,1126430,1107851,1130162,1098403,1079051,2245127,1130190,1127027,1095578,2001874,2800232,236077,2825241,1298422,347455,610881,1079315,1108141,1126552,458084,2602112,1118981,336994,1124183,1125104,1113243,1102280,1131187) ORDER BY field (ArticleID,1124013,1066925,1126430,1107851,1130162,1098403,1079051,2245127,1130190,1127027,1095578,2001874,2800232,236077,2825241,1298422,347455,610881,1079315,1108141,1126552,458084,2602112,1118981,336994,1124183,1125104,1113243,1102280,1131187)