天气预报 > 数码 > dhd全站仪是什么意思
dhd全站仪是什么意思
更新时间: 2019-04-17 00:00:00  

表示站点和所测点的距离与站点和放样点距离的差。比如该站点是A输入放点B坐标进去,然后将棱镜放在C点,如果按照准棱镜来测量,当仪器显示dhd等于+1.235米时,就表示棱镜需要前进1.235米。如果仪器上面显示dhd等于-1.235米,这时棱镜需要向后退1.35米。

关键词: dhd 全站 什么 意思

dhd全站仪是什么意思相关经验

天气预报

最新推荐

页面:/news/view-1116903/ | 耗时:0.0137 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=1116903 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1116903 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1116903 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1100945,1091938,1090380,1098675,1095003,1115159,1104262,1109180,1073120,1122593,1094879,1090258,1084741,1115863,1071984,1103425,1091681,1112714,1090853,1099831,1102290,1119776,1097149,1070528,1104469,1110357,1101393,1087867,1112232,1113742) ORDER BY field (ArticleID,1100945,1091938,1090380,1098675,1095003,1115159,1104262,1109180,1073120,1122593,1094879,1090258,1084741,1115863,1071984,1103425,1091681,1112714,1090853,1099831,1102290,1119776,1097149,1070528,1104469,1110357,1101393,1087867,1112232,1113742)