What is the difference between lead fishing for crucian carp and hook bottom?

Fishing can generally be divided into traditional fishing and platform fishing. Traditional fishing is a lead bottom activity, while platform fishing is lead fixed but suspended. Generally, there are two hooks, one high and the other low, with a spacing of 2 to 3 cm. When adjusting, it can be adjusted to a bottom and a bottom, and the floating can be adjusted to be dull or dull. These are all decided according to the situation at that time. The difference between lead landing and hook bottom is actually the difference between spirit and dullness.