1965年,美国发动越战时,对越南实行了所谓“铁锅式”的经济封锁,叫嚣要扼住“胡志明小道”, 切断越南人民军战略物资运输大动脉。一天,美国飞机多得像麻雀, 盘旋在“胡志明小道”的上空,投下了大批新近研制的传感器。这些传感器的大小形状像桃子,美军为了便于伪装,特意把它染成了绿色。这些“桃子”周身都拴着细绳索,空降时很容易挂在树梢上和灌木枝条上,只有少数落在了地面上。 In 1965, when the United States launched the Vietnam War, it implemented a so-called wok-type economic blockade on Vietnam and shouted to strangle the Ho Chi Minh Trail and cut off the artery of strategic transport of Vietnamese People’s Army. One day, the U.S. aircraft were more like sparrows, hovering over the “Ho Chi Minh trail” and dropped a large number of newly developed sensors. The size of these sensors shaped like peaches, the United States in order to facilitate camouflage, deliberately dyed it green. These “peaches” are all tied around the thin ropes, easy to hang on the treetops and bush branches when airborne, and only a few fall on the ground.