4x300平方铝电缆载流量:reference switch是什么意思?

switch 是开关的意思。reference的全部意思就在下面了。
reference
n.
提及, 涉及, 参考, 参考书目, 证明书(人), 介绍信(人)

reference
n.Abbr. ref.（名词）缩写 ref.
An act of referring:
参考：参考的行为：
My careful writing results from many references to a dictionary.
我缜密的文章来源于经常查字典
Significance in a specified context:
特殊的重要性：在特定上下文中有特别的意义：
Her speeches have special reference to the African situation.
她的演讲对非洲形势有特定的意义
Meaning or denotation.
涵义：意思或含义
The state of being related or referred:
相关：被提及或被参考的状态：
with reference to; in reference to.
关于；就…而言
A mention of an occurrence or a situation:
提及：提到发生的事件或处境：
She made frequent references to her promotion.
她时常提到她的升迁
A note in a publication referring the reader to another passage or source.
参考书目：提示读者参考另外的篇章或资料的出版物注解
The passage or source so referred to.
参考资料：供参考的篇章或资料
A work frequently used as a source.
参考书：常被当作出处的作品
A mark or footnote used to direct a reader elsewhere for additional information.
参照符号：用来引导读者到别处寻找附加信息的符号或脚注
Law
【法律】
Submission of a case to a referee.
提交仲裁，提交裁判：把案件提交仲裁人或裁判员
Legal actions conducted before or by a referee.
仲裁引导，仲裁施行：由仲裁人或裁判员引导或施行的法律行为
A person who is in a position to recommend another or to vouch for his or her fitness, as for a job.
介绍人：可以为另一人推荐或保证他或她适合做如某工作的人
A statement about a person's qualifications, character, and dependability.
推荐信：对于某人资历、性格和可靠性的陈述
v.tr.（及物动词）
ref.er.enced， ref.er.enc.ing， ref.er.ences
To supply references to:
提供…参考：
“Our memories are addressed and referenced . . . by significant fragments of their own content”(Frederick Turner)
“我们的回忆是被它们自己内容的重要部分所引述和参考的”(弗雷德里克·特纳)
To mention in a reference; refer to:
提及：提到以供参考；指…：
He referenced her book in his speech.See Usage Note at allude
他在讲话中提及了她的书参见 allude

参数转换开关

意思是更改参数的开关。打开开关可调整参数。