Mine clearance has become the primary task of engineers. After the engineers arrived at Jiangshan Island, they immediately engaged in comprehensive mine clearance and found many mines on beaches and main roads. The enemy planted many kinds of mines on the island: metal mines, chemical mines, plastic mines and so on. Among them is a plastic mine marked "M 14", which is about the size of an orange green. It's usually hard to find after camouflage. This kind of plastic mine has a small fuse at the bottom, which will explode as soon as you step on it. This kind of mine is full of corrosive poison. After lightning strikes, severe cases will be amputated. For metal mines, they use mine detectors to search and eliminate them; For plastic mines and chemical mines, they are carefully searched and excluded with eyes and hands. During homework, some comrades accidentally stepped on a mine and got hurt.