“helicopter logging”的概念、定义、翻译、参考文献-科学参考

单词	helicopter logging
释义	helicopter logging 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	unfixed-sum insurance unflattened cone unflattened wedge unfocused unfocused interaction unfold unfoldase unfolding unfolding of reflective prism Unforgettable Battle unformatted unformatted capacity unformed unfreezing operations Ungava Peninsula ungerade ungerade state ungerade state, u-state UN Global Road Safety Week ungrouped meteorites ungsten-carbide bit unguiculus unguided unguided medium unguifer

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