If the cold salt rate remains the same, salt is directly proportional to brine ~ ~

As for "in the same kind of brine", it should be right ~ this emphasizes "the salt content is certain" ~ but sometimes the previous sentence can be omitted without causing ambiguity.

Therefore, this question belongs to the question of getting to the bottom of it ~ ~ Strictly speaking, this sentence should be added ~ But because there are so many questions at ordinary times, although it is not said, most of them acquiesce in this sentence ~ ~ In short, it depends on the attitude of the teacher and whether he is true ~ ~ The following reasons are the same.