Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
Arabic
English
Finnish
French
German
Italian
Japanese
Polish
Portuguese
Russian
Spanish
Swedish
Ukrainian
G
o
o
g
l
e
|
Forvo
|
+
普朗特数
phys.
Prandtl-Zahl
n
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
