天气预报15天查询> 其他> 50hz是多少秒

50hz是多少秒

更新时间: 2020-11-19 00:00:00     

50hz是0.02秒,HZ即赫兹,也是国际单位制中频率的单位,还是每秒中的周期性变动重复次数的计量,名字来自于德国物理学家海因里希·鲁道夫·赫兹。另外每秒钟振动(或振荡、波动)一次为1赫兹,或可写成次/秒、周/秒,而频率是单位时间内周期性过程重复、循环或振动的次数,通常用f来表示。

关键词: 50hz 多少

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-3102753/ | 耗时:0.5749 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=3102753 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=3102753 LIMIT 0,1
select * from tbl_Articles_sphinx where id=3102753 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1089078,1072403,1093044,1057447,1064601,1084469,1092163,1094825,1095664,1496365,1062702,1095456,1086464,1109304,1089008,1069505,1082239,1041954,1015577,1048220,1080663,1072591,1090310,1113037,1089526,1053494,1076656,1086120,1084427,1064061) ORDER BY field (ArticleID,1089078,1072403,1093044,1057447,1064601,1084469,1092163,1094825,1095664,1496365,1062702,1095456,1086464,1109304,1089008,1069505,1082239,1041954,1015577,1048220,1080663,1072591,1090310,1113037,1089526,1053494,1076656,1086120,1084427,1064061)