1.construction materials to prevent fall injuries, lifting operations, the hoist was not perpendicular to the bottom.
施工中要防止坠物伤人，吊装作业时，吊物垂直下方不得有人。
2.Bought a new casserole, some wall stick a lot of sand, you need to brush it with a small brush to prevent fall in the food inside.
新买来的砂锅，有的内壁粘有许多砂粒，需要用小刷子把它刷掉，以免掉在饭菜里面。
3.and pipe network infrastructure, but they should pay attention to the Ministry of negative reinforcement plate to prevent fall into.
板的钢筋网绑扎与基础相同，但应注意板上部的负筋，要防止被踩下。