移至内容
Main menu
Main menu
move to sidebar
hide
Navigation
Main Page
Help
Browse
Cookbook
Wikijunior
Featured books
Recent changes
Random book
Using Wikibooks
Community
Reading room forum
Community portal
Bulletin Board
Help out!
Policies and guidelines
Contact us
Search
Search
Donations
Appearance
Create account
Log in
Personal tools
Create account
Log in
Pages for logged out editors
learn more
Contributions
Discussion for this IP address
类别
:
非免费图标
Add languages
Add links
Category
Discussion
English
Read
Edit
Edit source
View history
Tools
Tools
move to sidebar
hide
Actions
Read
Edit
Edit source
View history
General
What links here
Related changes
Upload file
Special pages
Permanent link
Page information
Get shortened URL
Download QR code
Sister projects
Wikipedia
Wikiversity
Wiktionary
Wikiquote
Wikisource
Wikinews
Wikivoyage
Commons
Wikidata
MediaWiki
Meta-Wiki
Print/export
Create a collection
Download as PDF
Printable version
In other projects
外观
移动到侧边栏
隐藏
帮助
来自维基教材，开放世界的开放教材
这些图标受版权保护，无法重复使用。
使用 {{
non-free computer icon
}} 将文件添加到此类别。
媒体文件
此类别中有以下 7 个文件（共 7 个）。
G
文件：Glue surface type.png
H
文件：Hinge surface type.png
I
文件：Inlet surface type.png
M
文件：Motor surface type.png
S
文件：Stud surface type.png
U
文件：Universal surface type.png
W
文件：Weld surface type.png
类别
:
隐藏的类别
隐藏的类别
非免费文件
华夏公益教科书
