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free drop
avia. 自由投放
el. 自由下降; 自由下落; 自由滴水
golf. 自由抛球
hydroel.st. 自由跌水
tech. 自由空投物; 跌水
 English thesaurus
free drop
mil., logist. The dropping of equipment or supplies from an aircraft without the use of parachutes. (FRA)
USA The dropping of equipment or supplies from an aircraft without the use of parachutes (JP 3-17) see also airdrop, air movement, free fall, high velocity drop, low velocity drop
free drop: 5 phrases in 1 subject
Technology5