Redmine

Environment:
Redmine version 3.4.5.stable
Ruby version 2.3.3-p222 (2016-11-21) [i386-mingw32]
Rails version 4.2.8
Environment production
Database adapter Mysql2
SCM:
Subversion 1.11.0
Git 2.14.1
Filesystem
Redmine plugins:
custom_users_as_assignees 0.0.3
redmine_agile 1.4.12
redmine_issue_template 1.0.7
redmine_monitoring_controlling 0.1.1
redmine_work_time 0.3.4
redmine_workflow_hidden_fields 0.5.0
production.log:
I, [2020-02-29T10:00:51.094359 #13092] INFO -- : Started GET "/redmine/attachments/download/17/2019-12-12_018_%E5%8A%9F%E8%80%97%E5%A4%B1%E8%B4%A5&%E5%8A%A0%E5%AF%86%E5%A4%B1%E8%B4%A5&%E6%B5%81%E9%87%8F%E4%B8%8D%E9%80%9A_ZTE.pdf" for 127.0.0.1 at 2020-02-29 10:00:51 +0800
I, [2020-02-29T10:00:51.094359 #13092] INFO -- : Processing by AttachmentsController#download as HTML
I, [2020-02-29T10:00:51.094359 #13092] INFO -- : Parameters: {"id"=>"17", "filename"=>"2019-12-12_018_功耗失败&加密失败&流量不通_ZTE.pdf"}
I, [2020-02-29T10:00:51.109959 #13092] INFO -- : Current user: admin (id=1)
I, [2020-02-29T10:00:51.109959 #13092] INFO -- : Sent file D:/redmine_data_DoNotMove/files/2020/01/200106131042_62ed3ba4302267d7e6a0b67c460972d8.pdf (0.0ms)
I, [2020-02-29T10:00:51.109959 #13092] INFO -- : Completed 200 OK in 16ms (ActiveRecord: 0.0ms)
I, [2020-02-29T09:56:18.199629 #13092] INFO -- : Started GET "/redmine/attachments/download/17/2019-12-12_018_%E5%8A%9F%E8%80%97%E5%A4%B1%E8%B4%A5&%E5%8A%A0%E5%AF%86%E5%A4%B1%E8%B4%A5&%E6%B5%81%E9%87%8F%E4%B8%8D%E9%80%9A_ZTE.pdf" for 127.0.0.1 at 2020-02-29 09:56:18 +0800
I, [2020-02-29T09:56:18.199629 #13092] INFO -- : Processing by AttachmentsController#download as HTML
I, [2020-02-29T09:56:18.199629 #13092] INFO -- : Parameters: {"id"=>"17", "filename"=>"2019-12-12_018_功耗失败&加密失败&流量不通_ZTE.pdf"}
I, [2020-02-29T09:56:18.215229 #13092] INFO -- : Current user: admin (id=1)
I, [2020-02-29T09:56:18.215229 #13092] INFO -- : Completed 304 Not Modified in 16ms (ActiveRecord: 0.0ms)

Save the link to local，open pdf file error：Acrobat cannot open 2019-12-12_018_功耗失败&加密失败&流量不通_ZTE.pdf。This type is not supported or the file is corrupted