jmeter.propertie 这一段:
THIS FILE SHOULD NOT BE MODIFIED
#

This avoids having to re-apply the modifications when upgrading JMeter

Instead only user.properties should be modified:

1/ copy the property you want to modify to user.properties from jmeter.properties

2/ Change its value there

#
################################################################################

JMeter properties are described in the file

http://jmeter.apache.org/usermanual/properties_reference.html

A local copy can be found in

printable_docs/usermanual/properties_reference.html

#Preferred GUI language. Comment out to use the JVM default locale's language.
#language=en

bug, 外观选择以下之一

• CDE/Motif
• Metal
• System
• Nimbus

重启，再将语言切换为中文即可