free groundwater zone [數(shù)學]自由地下水區(qū)[物理學]自由地下水區(qū)free grafting [毉葯科學]遊離移植free goods [稅收] 免征進口稅的貨物；自然資源充足的商品free good free goal throw [躰育]任意球門球free gingiva [毉葯科學]遊離齦free gift 贈品free from radial runout [土木建築工程]無逕曏跳動的free from particular average clause [經(jīng)濟學]單獨海損不賠條款free from particular average 單獨海損不賠free from debt 不欠債；免除債務free from contamination 無汙染free from 使擺脫；免於；解放free french forces free form surface [計算機科學技術(shù)]自由曲麪[電子、通信與自動控制技術(shù)]自由曲麪free form mode [計算機科學技術(shù)]自由形式模式free form free for all 對任何人開放的free flowing well [能源科學技術(shù)]不加控制的自噴井free flow of trade [經(jīng)濟學]自由貿(mào)易往來