搜题请搜索小程序“爱下问搜题”
问题 问答题 简答题

简述铆钉应如何布臵？

答案

参考答案：

接缝一边铆钉数目确定后，应合理的布臵。铆钉的排列按下列经验公式确定：

1.钉距t=3d～8d；

2.边距c=2d～2.5d；

3.排距a=2.5d～4d。

铆钉的布臵确定后，补板的长度就可以确定了。

阅读理解
阅读理解。
     Different types of maps have different uses.
Tourist maps, for example, have signs (标志) to
show places of interest in an area. When tourists
read these maps, it is easy for them to find where
to go and what to see in a place and it is easy for
them to go and find their ways to these places.
    Road maps show large areas so that people can
plan long journeys. Different types of roads are
given different numbers. For example, if you want
to go to Wood Green, you just follow No. 621
Road and keep looking at the road signs.
    Distribution maps (分布图) use colors or signs to
show facts about an area. For example, where
different languages are spoken, how many people
live in an area, how cold and hot some places are,
or whether a place is short of water.
     Some maps, such as railway maps, use straight
lines to show everything. This is easy for people
to read. Trains are fast. People don't have to think
about small places they go past. They just need to
know the two ends of their trips.
1. Jim wants to visit some places of interest. Which map does he need most?
A. A road map.
B. A tourist map.
C. A distribution map.
D. A railway map.
2. How can you tell different roads on Road maps?
A. By finding the numbers.
B. By using different colors.
C. By using straight lines.
D. By looking at the road signs.
3. Which of the following can Distribution maps tell us?
A. How to get to Germany.
B. How to plan a long journey.
C. Which place is short of water.
D. Where a famous museum is.
查看答案
填空题

赖特一般在住宅设计中采用不对称的布局，而在（）中则保留对称的模式。
查看答案