Equations are generally written with an equal sign.
等式通常用等号来写。
《柯林斯英汉双解大词典》
What does an equal sign do?
一个等号是用来做什么的？
youdao
Why don't I just use an equal sign?
不用一个等号么？
应用推荐
模块上移
模块下移
不移动