71750
Google translate gave be result below

> 所定 = Predetermined
>
> 固定 = Fixed

Which word is used when?
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2019-09-12T05:20:44.313
71749
2019-09-12T09:22:23.210
2020-06-17T08:18:27.500
-1
34456
question
word-choice
「所定」と「固定」の違いは何でしょうか？
* 所定 is a no-adjective. 固定 is a transitive suru-verb and no-adjective.

> 固定の金額: OK  
>  所定の金額: OK  
>  金額を固定する: OK  
>  金額を所定する: NG

  * Obviously, fixation of a tangible object is 固定 but not 所定.

> その絵は壁に固定されている。  
>  The picture is fixed to the wall.

  * 所定 means "it's been already determined/established by someone", 固定 means "it won't change". A 所定のルール may be revised in the future, whereas a 固定のルール is, um, fixed.
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2019-09-12T06:36:32.137
71750
2019-09-12T06:36:32.137
5010
71749
answer
所定 and 固定 have totally different meanings. The reason why the translation you
have found seems confusing is partially because 所定 usually never translates
into one fixed word in English.

**固定** is easy; it's a verb or a noun (but sometimes virtually an adjective)
that means "to fix", "fixing", and "fixed", in the sense "to have something
not move".

**所定** is hardly used in Japanese other than the form 所定の, which roughly means
"which is previously given", but I guess you wouldn't see this phrase as it is
in English. Instead:

> 所定の書式 _the provided/designated format_  
>  所定の時間 _the appointed/arranged time_  
>  所定の手続き _the prescribed procedure_  
>  所定の料金 _the fee as specified (in...)_

In other words, it tells you to see and follow the content of some provision
or agreement that already exists. Thus you might translate "fixed" sometimes
所定 and sometimes 固定, but they'd be quite different settings.

Machine translation is usually unreliable with pairs like English and Japanese
where many grammars and concepts don't match up.
CC BY-SA 4.0
2019-09-12T09:22:23.210
71754
2019-09-12T09:22:23.210
7810
71749
answer