“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	leap function leap month leap second leap second adjustment leap year learnability learned behavior learned behaviour learned helplessness Learned Men(Remnant of Seven Sages of the Bamboo Grove) Learned Publishing learner learner-centered design learner-centered learning environment learner's dictionary Learner's Lexicography Learn from Daqing in industry Learn from Dazhai in agriculture Learn from Lei Feng learn from natures Learn from the West learning learning ability Learning About Ancient Seals learning algorithm

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。