1. Breeding crayfish, First of all, we must find a good venue. Ponds or paddy fields can be transformed. Attention should be paid to the fact that it is best not to have farmland water flowing into the ponds around, because pesticides must be applied to grow rice now, and if pesticides flow into your ponds, your shrimps will die a lot. If they die, they will generally sink to the bottom of the water, and you cannot find them. Therefore, attention should be paid to the selection and pulling. Water sources should be guaranteed and water should be exchanged for drainage and irrigation.
8. The term "ship limited to draft" refers to a motor ship whose ability to deviate from its course is seriously limited due to the relationship between draft and the depth and breadth of navigable waters.