“直升机集材”的概念、定义、翻译、参考文献-科学参考

单词	直升机集材
释义	直升机集材 Encyclopedia 农学集材释 helicopter logging直升机集材在森林采运作业中，将各伐木地点伐倒的木材逐次逐根悬吊于直升机下面空运汇集到装车场（山上楞场、集运木材点）的集材作业。
随便看	locally convex topological linear space locally convex topology locally countable base locally countable set locally cyclic group locally dense leaf locally equicontinuous semigroup locally equivalent structures locally Euclidean locally Euclidean group locally Euclidean space locally factorial ring locally faithful representation locally finite locally finite algebra locally finite base locally finite category locally finite complex locally finite covering locally finite family locally finite family of sets locally finite graph locally finite group locally finite module locally finite quiver

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。