1·Contraposed the expanding strain of water resources present, rainwater resource has been widely utilized in the world.
针对水资源日益紧张的现状，雨水资源以其独特的特点在全世界范围内被逐步利用。
2·Some parts of Chengnan faulted zone have developed multistage contraposed glutenite at S3 with difficulty for exploration and development.
埕南断裂带发育了多期相互叠置的砂砾岩体，具有很大的勘探开发难度。