This environment includes all structures built according to scientific principles, from irrigation and drainage systems to rocket-launching facilities.
此处的环境包括建筑符合科学规范的所有结构，从灌溉和排水系统到火箭发射设施。
2
Make sure your drainage plan slopes away from homes or other structures to protect against flooding and moisture damage.
确保您的排水计划斜坡远离家园或其他结构，以防止洪水和水分损失。
3
A draining structure with original creation which is selected by the test is presented, its drainage effect is better than that of similar structures at home and abroad.