天气预报15天查询> 其他> 如何理解长对正宽齐平高相等

如何理解长对正宽齐平高相等

更新时间: 2020-09-24 00:00:00     

在学习利用平行投影法求的三面投影图时,物体的三个面与投影有长对正宽齐平高相等的规律。

长对正:正立面和水平面投影的长度对正。长度,指左右方向的长度。

宽相等:水平投影图和左视图的宽度相等。宽度,指水平投影的进深长度。

高齐平:正立面和左视图的高齐平(相等)。

关键词: 如何 理解 相等

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-412385/ | 耗时:0.3967 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=412385 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=412385 LIMIT 0,1
select * from tbl_Articles_sphinx where id=412385 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(472347,596641,1127747,362256,1055405,1481703,372493,1074204,1052195,438448,1121164,346337,234443,1117049,1079051,279113,412385,449112,433687,1052065,565961,252728,189625,227911,1126282,461434,1132523,308414,384652,1594020) ORDER BY field (ArticleID,472347,596641,1127747,362256,1055405,1481703,372493,1074204,1052195,438448,1121164,346337,234443,1117049,1079051,279113,412385,449112,433687,1052065,565961,252728,189625,227911,1126282,461434,1132523,308414,384652,1594020)